A stored cross-site scripting vulnerability exists in MISP when the Overmind theme is used. The setHomePage endpoint previously saved the user-controlled path value through setSettingInternal(), bypassing the normal setSetting() validation logic, including validate_homepage, which requires homepage paths to start with /. As a result, an authenticated user could store an arbitrary homepage value, including an XSS payload. The stored value was later rendered in app/View/News/index.ctp as the href attribute of the “Continue to homepage” link without HTML escaping. This could allow execution of attacker-controlled JavaScript in the browser context of the affected MISP instance when the crafted homepage link is rendered and interacted with. The issue is fixed by always persisting the homepage setting through setSetting(), ensuring validation and access checks are applied, and by HTML-escaping the homepage value before rendering it in the news view.

MISP contains a reflected cross-site scripting vulnerability in the UiBeta event index view. The urlparams value is inserted into an inline JavaScript handler using HTML escaping inside a single-quoted JavaScript string. Because browsers HTML-decode attribute values before JavaScript parsing, a crafted searcheventinfo value can restore encoded quote characters and break out of the JavaScript string. An attacker could craft a malicious URL that, when opened by a victim using the UiBeta event index, executes arbitrary JavaScript in the victim’s browser in the context of the MISP instance. The issue is fixed by encoding the value as a JavaScript string literal with json_encode() before applying HTML escaping at the attribute layer.

app/Lib/Tools/EventTimelineTool.php in MISP before 2.4.179 allows XSS in the event timeline widget.

In app/Controller/Component/RestResponseComponent.php in MISP before 2.4.193, REST endpoints have a lack of sanitization for non-JSON responses.

In MISP before 2.4.193, menu_custom_right_link parameters can be set via the UI (i.e., without using the CLI) and thus attackers with admin privileges can conduct XSS attacks via a global menu link.

app/View/Elements/GalaxyClusters/view_relation_tree.ctp in MISP 2.4.147 allows Stored XSS when viewing galaxy cluster relationships.

app/View/GalaxyElements/ajax/index.ctp in MISP 2.4.147 allows Stored XSS when viewing galaxy cluster elements in JSON format.

In MISP 2.4.167, app/webroot/js/action_table.js allows XSS via a network history name.

In MISP before 2.4.193, menu_custom_right_link_html parameters can be set via the UI (i.e., without using the CLI) and thus attackers with admin privileges can conduct XSS attacks against every page.

An issue was discovered in MISP 2.4.91. A vulnerability in app/View/Elements/eventattribute.ctp allows reflected XSS if a user clicks on a malicious link for an event view and then clicks on the deleted attributes quick filter.

MISP 2.4.136 has XSS via a crafted URL to the app/View/Elements/global_menu.ctp user homepage favourite button.

An issue was discovered in MISP before 2.4.158. There is stored XSS via the LinOTP login field.

An issue was discovered in MISP before 2.4.158. There is stored XSS in the galaxy clusters.

An issue was discovered in MISP before 2.4.158. There is XSS in app/Controller/OrganisationsController.php in a situation with a "weird single checkbox page."

An issue was discovered in MISP before 2.4.158. There is XSS in the cerebrate view if one administrator puts a javascript: URL in the URL field, and another administrator clicks on it.

An issue was discovered in MISP before 2.4.156. An SVG org logo (which may contain JavaScript) is not forbidden by default.

A stored cross-site scripting (XSS) vulnerability exists in the notification panel of CTI Transmute in versions prior to the patched release. Notification messages containing user-controlled convert names were rendered in the notification bell dropdown using innerHTML without adequate sanitization. An attacker able to create or influence a convert name that is included in a notification could inject arbitrary JavaScript, which would execute in the browser of an authenticated user when they opened the notification panel. Successful exploitation could allow the attacker to perform actions in the victim's session or access information available to the application in the browser context. The issue was remediated by constructing notification elements through DOM methods and assigning notification message content via textContent instead of innerHTML. This vulnerability was only present on a development branch.

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in misp allows Stored XSS. This issue affects MISP before 2.5.37. A stored cross-site scripting vulnerability exists in the template element attribute handling logic. The application accepted arbitrary values for the TemplateElementAttribute type and category fields without validating them against the known MISP attribute type and category definitions. An attacker with permission to create or modify template element attributes could store a crafted type value. This affects the old templating (not more accessible in 2.5.37) engine from MISP which will be removed in 2.5.38

In MISP 2.4.134, XSS exists in the template element index view because the id parameter is mishandled.

app/View/Elements/genericElements/SingleViews/Fields/genericField.ctp in MISP 2.4.135 has XSS via the authkey comment field.

In MISP before 2.5.28, app/View/Elements/Workflows/executionPath.ctp allows XSS in the workflow execution path.

A cross-site scripting (XSS) vulnerability exists in MISP v2.4.128 in app/Controller/UserSettingsController.php at SetHomePage() function. Due to a lack of controller validation in "path" parameter, an attacker can execute malicious JavaScript code.

app/View/Events/resolved_attributes.ctp in MISP before 2.4.126 has XSS in the resolved attributes view.

MISP 2.4.122 has Persistent XSS in the sighting popover tool. This is related to app/View/Elements/Events/View/sighting_field.ctp.

MISP 2.4.122 has reflected XSS via unsanitized URL parameters. This is related to app/View/Users/statistics_orgs.ctp.

In app/webroot/js/event-graph.js in MISP 2.4.111, a stored XSS vulnerability exists in the event-graph view when a user toggles the event graph view. A malicious MISP event must be crafted in order to trigger the vulnerability.

A persistent XSS issue was discovered in app/View/Helper/CommandHelper.php in MISP before 2.4.107. JavaScript can be included in the discussion interface, and can be triggered by clicking on the link.

An issue was discovered in MISP 2.4.174. In app/Controller/DashboardsController.php, a reflected XSS issue exists via the id parameter upon a dashboard edit.

MISP 2.4.174 allows XSS in app/View/Events/index.ctp.

In MISP before 2.4.105, the app/View/Layouts/default.ctp default layout template has a Reflected XSS vulnerability.

app/View/Helper/CommandHelper.php in MISP before 2.4.79 has persistent XSS via comments. It only impacts the users of the same instance because the comment field is not part of the MISP synchronisation.

An issue was discovered in MISP before 2.4.156. A malicious site administrator could store an XSS payload in the custom auth name. This would be executed each time the administrator modifies a user.

app/View/GalaxyClusters/add.ctp in MISP 2.4.146 allows Stored XSS when forking a galaxy cluster.

app/View/SharingGroups/view.ctp in MISP before 2.4.146 allows stored XSS in the sharing groups view.

An issue was discovered in MISP before 2.4.158. There is stored XSS in the event graph via a tag name.

MISP 2.4.136 has Stored XSS in the galaxy cluster view via a cluster name to app/View/GalaxyClusters/view.ctp.

MISP 2.4.136 has XSS via galaxy cluster element values to app/View/GalaxyElements/ajax/index.ctp. Reference types could contain javascript: URLs.

An issue was discovered in app/webroot/js/misp.js in MISP before 2.4.107. There is persistent XSS via image names in titles, as demonstrated by a screenshot.

An issue was discovered in app/View/Elements/Events/View/value_field.ctp in MISP before 2.4.107. There is persistent XSS via link type attributes with javascript:// links.

A reflected cross-site scripting (XSS) vulnerability in the Liferay Portal 7.4.0 through 7.4.3.133, and Liferay DXP 2025.Q1.0 through 2025.Q1.4 ,2024.Q4.0 through 2024.Q4.7, 2024.Q3.1 through 2024.Q3.13, 2024.Q2.0 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.15, 7.4 GA through update 92 allows an remote non-authenticated attacker to inject JavaScript into the modules/apps/blogs/blogs-web/src/main/resources/META-INF/resources/blogs/entry_cover_image_caption.jsp