Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. In versions 0.6.34 and below, the functionality that inserts custom prompts into the chat window is vulnerable to DOM XSS when 'Insert Prompt as Rich Text' is enabled, since the prompt body is assigned to the DOM sink .innerHtml without sanitisation. Any user with permissions to create prompts can abuse this to plant a payload that could be triggered by other users if they run the corresponding / command to insert the prompt. This issue is fixed in version 0.6.35.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.3, his advisory tracks a regression of the original Excel-preview XSS (CVE-2026-44549). The same root cause — XLSX.utils.sheet_to_html() output rendered via {@html excelHtml} without DOMPurify — was reintroduced sometime after v0.8.0 and is exploitable again This vulnerability is fixed in 0.9.3.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, Excel file attachments are previewed in an unsafe way. A crafted XLSX file payload can be used to cause the sheetjs function sheet_to_html to embed an XSS payload into the generated HTML. This is subsequently added to the DOM unsanitized via @html causing the payload to trigger. This vulnerability is fixed in 0.8.0.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.6.6, a vulnerability in the way certain html tags in chat messages are rendered allows attackers to inject JavaScript code into a chat transcript. The JavaScript code will be executed in the user's browser every time that chat transcript is opened, allowing attackers to retrieve the user's access token and gain full control over their account. Chat transcripts can be shared with other users in the same server, or with the whole open-webui community if "Enable Community Sharing" is enabled in the admin panel. If this exploit is used against an admin user, it is possible to achieve Remote Code Execution on the server where the open-webui backend is hosted. This can be done by creating a new function which contains malicious python code. This vulnerability also affects chat transcripts uploaded to `https://openwebui.com/c/<user>/<chat_id>`, allowing for wormable stored XSS in https[:]//openwebui[.]com. Version 0.6.6 contains a patch for the issue.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.6.6, low privileged users can upload HTML files which contain JavaScript code via the `/api/v1/files/` backend endpoint. This endpoint returns a file id, which can be used to open the file in the browser and trigger the JavaScript code in the user's browser. Under the default settings, files uploaded by low-privileged users can only be viewed by admins or themselves, limiting the impact of this vulnerability. A link to such a file can be sent to an admin, and if clicked, will give the low-privileged user complete control over the admin's account, ultimately enabling RCE via functions. Version 0.6.6 contains a fix for the issue.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.3, the audio transcription upload endpoint takes the file extension from the user-supplied filename and saves the file under CACHE_DIR/audio/transcriptions/.. The /cache/{path} route serves these files via FileResponse, which sets Content-Type from the on-disk extension and emits no Content-Disposition. A verified user with the default-on chat.stt permission can upload a polyglot WAV+HTML file named pwn.html and trick any other user into opening the resulting URL — the response comes back as text/html and any embedded <script> runs in the Open WebUI origin. This vulnerability is fixed in 0.9.3.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, the profile_image_url field on the user profile update form accepted arbitrary data: URI values without MIME-type validation, resulting in a XSS vulnerability. This vulnerability is fixed in 0.8.0.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.6.37, a Stored XSS vulnerability was discovered in Open-WebUI's Notes PDF download functionality. An attacker can import a Markdown file containing malicious SVG tags into Notes, allowing them to execute arbitrary JavaScript code and steal session tokens when a victim downloads the note as PDF. This vulnerability can be exploited by any authenticated user, and unauthenticated external attackers can steal session tokens from users (both admin and regular users) by sharing specially crafted markdown files. This vulnerability is fixed in 0.6.37.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.7.0, aanually modifying chat history allows setting the `html` property within document metadata. This causes the frontend to enter a code path that treats document contents as HTML, and render them in an iFrame when the citation is previewed. This allows stored XSS via a weaponized document payload in a chat. The payload also executes when the citation is viewed on a shared chat. Version 0.7.0 fixes the issue.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.6.44, aanually modifying chat history allows setting the `embeds` property on a response message, the content of which is loaded into an iFrame with a sandbox that has `allow-scripts` and `allow-same-origin` set, ignoring the "iframe Sandbox Allow Same Origin" configuration. This enables stored XSS on the affected chat. This also triggers when the chat is in the shared format. The result is a shareable link containing the payload that can be distributed to any other users on the instance. Version 0.6.44 fixes the issue.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the AccountPending.svelte component renders the admin-configured "Pending User Overlay Content" using marked.parse() inside {@html} with an incorrect DOMPurify application order. An admin can inject arbitrary JavaScript into the Pending User Overlay Content that executes in the browser context of any pending user who views the overlay page. This vulnerability is fixed in 0.9.0.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.6.5, through the HTML rendering view, scripts can be injected and executed. The frontend provides a function to visualize the HTML content of a current chat. The content is embedded in an iFrame with the allow-scripts allow-forms allow-same-origin sandbox directive. This means that the content is placed in a sandbox but with permission to execute scripts and access the parent’s data (e.g., local storage). As a result, only a few functions are restricted (e.g., displaying an alert box), but in effect, the sandbox attribute is largely nullified. This vulnerability is fixed in 0.6.5.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI patched SVG XSS in user profile images and webhook profile images but forgot to apply the same fix to model profile images. The ModelMeta class has no validate_profile_image_url field validator, and the model image serving endpoint has no MIME allowlist or nosniff header. Any authenticated user with workspace.models permission (enabled by default) can store a data:image/svg+xml;base64,... payload in a model's profile image and achieve full account takeover of anyone who navigates to the image URL. This vulnerability is fixed in 0.9.6.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, a Stored Cross-Site Scripting (XSS) vulnerability exists in the Banner component due to an improper sanitization order (specifically, DOMPurify is executed before the marked library). This vulnerability allows a compromised or malicious administrator to plant a malicious payload in the global banner. Crucially, this vector enables Privilege Escalation, as the malicious banner is rendered for all users, including the Super Admin (Primary Admin). Consequently, the payload successfully bypasses the existing security mechanism. An attacker can leverage this to steal the Super Admin's session token This vulnerability is fixed in 0.8.0.

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, a stored cross-site scripting (XSS) vulnerability that allows any authenticated user with model creation permission (workspace.models) to execute arbitrary JavaScript in the browser of any other user (including admins) who views the malicious model in the chat UI. This vulnerability is fixed in 0.9.0.

A stored cross-site scripting (XSS) vulnerability exists in open-webui/open-webui version 0.3.8. The vulnerability is present in the `/api/v1/models/add` endpoint, where the model description field is improperly sanitized before being rendered in chat. This allows an attacker to inject malicious scripts that can be executed by any user, including administrators, potentially leading to arbitrary code execution.

An XSS vulnerability exists in open-webui/open-webui versions <= 0.3.8, specifically in the function that constructs the HTML for tooltips. This vulnerability allows attackers to perform operations with the victim's privileges, such as stealing chat history, deleting chats, and escalating their own account to an admin if the victim is an admin.

A Stored Cross-Site Scripting (XSS) vulnerability exists in the chat file upload functionality of open-webui/open-webui version 0.3.8. An attacker can inject malicious content into a file, which, when accessed by a victim through a URL or shared chat, executes JavaScript in the victim's browser. This can lead to user data theft, session hijacking, malware distribution, and phishing attacks.

A vulnerability in open-webui/open-webui version 0.3.8 allows an attacker with a user-level account to perform a session fixation attack. The session cookie for all users is set with the default `SameSite=Lax` and does not have the `Secure` flag enabled, allowing the session cookie to be sent over HTTP to a cross-origin domain. An attacker can exploit this by embedding a malicious markdown image in a chat, which, when viewed by an administrator, sends the admin's session cookie to the attacker's server. This can lead to a stealthy administrator account takeover, potentially resulting in remote code execution (RCE) due to the elevated privileges of administrator accounts.

Attackers can craft a malicious prompt that coerces the language model into executing arbitrary JavaScript in the context of the web page.

NetBox is an open-source infrastructure resource modeling and IP address management platform. A reflected cross-site scripting (XSS) vulnerability exists in versions 2.11.0 through 3.7.x in the ProtectedError handling logic, where object names are included in HTML error messages without proper escaping. This allows user-controlled content to be rendered in the web interface when a delete operation fails due to protected relationships, potentially enabling execution of arbitrary client-side code in the context of a privileged user.

The Himer WordPress theme before 2.1.1 does not sanitise and escape some of its Post settings, which could allow high privilege users such as Contributor to perform Stored Cross-Site Scripting attacks

The CPO Companion WordPress plugin before 1.1.0 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.

The Store Locator WordPress plugin before 1.4.9 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.

A cross site scripting vulnerability exists when Microsoft Dynamics 365 (on-premises) does not properly sanitize a specially crafted web request to an affected Dynamics server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected Dynamics server. The attacker who successfully exploited the vulnerability could then perform cross-site scripting attacks on affected systems and run script in the security context of the current authenticated user. These attacks could allow the attacker to read content that the attacker is not authorized to read, use the victim's identity to take actions within Dynamics Server on behalf of the user, such as change permissions and delete content, and inject malicious content in the browser of the user. The security update addresses the vulnerability by helping to ensure that Dynamics Server properly sanitizes web requests.

SAP Companion - version <3.1.38, has a URL with parameter that could be vulnerable to XSS attack. The attacker could send a malicious link to a user that would possibly allow an attacker to retrieve the sensitive information and cause minor impact on the integrity of the web application.

In JetBrains TeamCity before 2022.10.3 stored XSS in Perforce connection settings was possible

A vulnerability, which was classified as problematic, was found in PHPGurukul Time Table Generator System 1.0. Affected is an unknown function of the file /admin/profile.php. The manipulation of the argument adminname leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

The Video.js WordPress plugin through 4.5.0 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks

A vulnerability, which was classified as problematic, has been found in PHPGurukul Apartment Visitors Management System 1.0. This issue affects some unknown processing of the file /manage-newvisitors.php of the component HTTP POST Request Handler. The manipulation of the argument visname leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Other parameters might be affected as well.

Cross-site Scripting (XSS) - Stored in GitHub repository usememos/memos prior to 0.9.1.

The Embed PDF WordPress plugin through 1.0.6 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks

A vulnerability was found in PHPGurukul Apartment Visitors Management System 1.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file pass-details.php of the component HTTP POST Request Handler. The manipulation of the argument visname leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

A vulnerability classified as problematic has been found in PHPGurukul Apartment Visitors Management System 1.0. This affects an unknown part of the file /admin-profile.php of the component HTTP POST Request Handler. The manipulation of the argument adminname leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

In affected versions of Octopus Server the help sidebar can be customized to include a Cross-Site Scripting payload in the support link. This was initially resolved in advisory 2022-07 however it was identified that the fix could be bypassed in certain circumstances. A different approach was taken to prevent the possibility of the support link being susceptible to XSS

Imprivata Privileged Access Management (formally Xton Privileged Access Management) 2.3.202112051108 allows XSS.

The Video Sidebar Widgets WordPress plugin through 6.1 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks

A vulnerability has been found in Portabilis i-Educar 2.9.0/2.10.0. This vulnerability affects unknown code of the file /intranet/agenda.php of the component Agenda Module. The manipulation of the argument novo_titulo/novo_descricao leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability was found in Portabilis i-Educar up to 2.10. This issue affects some unknown processing of the file /intranet/educar_calendario_dia_motivo_cad.php of the component Calendar Module. The manipulation of the argument Motivo/descricao results in cross site scripting. It is possible to launch the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability has been found in Portabilis i-Diario 1.5.0 and classified as problematic. This vulnerability affects unknown code of the file /conteudos. The manipulation of the argument filter[by_description] leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability was found in Portabilis i-Diario 1.5.0 and classified as problematic. This issue affects some unknown processing of the file /justificativas-de-falta. The manipulation of the argument Justificativa leads to cross site scripting. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

The Materialis Companion WordPress plugin before 1.3.40 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.

StrangeBee TheHive 5.2.0 to 5.2.8 is vulnerable to Cross Site Scripting (XSS) in the case reporting functionality. This feature allows an attacker to insert malicious JavaScript code inside the template or its variables, that will be executed in the context of the TheHive application when the HTML report is opened.

Tramyardg hotel-mgmt-system version 2022.4 is vulnerable to Cross Site Scripting (XSS) via process_update_profile.php.

The ShopLentor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's woolentorsearch shortcode in all versions up to, and including, 2.8.8 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

A vulnerability was found in code-projects Church Donation System 1.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file /admin/edit_members.php. The manipulation of the argument fname leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Other parameters might be affected as well.

Themify Shortcodes WordPress plugin before 2.0.8 does not validate and escape one of its shortcode attributes, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attack.

Opencats v0.9.7 was discovered to contain a stored cross-site scripting (XSS) vulnerability in the component /opencats/index.php?m=calendar. This vulnerability allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Description or Title text fields.

A vulnerability, which was classified as problematic, has been found in jerryshensjf JPACookieShop 蛋糕商城JPA版 up to 24a15c02b4f75042c9f7f615a3fed2ec1cefb999. Affected by this issue is some unknown functionality of the file GoodsController.java. The manipulation leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. Multiple endpoints are affected.

DedeCMS v5.7.97 was discovered to contain a cross-site scripting (XSS) vulnerability in the component /file_manage_view.php?fmdo=edit&filename.