Mattermost version 8.1.6 and earlier fails to sanitize channel mention data in posts, which allows an attacker to inject markup in the web client.

Mattermost 5.38 and earlier fails to sufficiently sanitize clipboard contents, which allows a user-assisted attacker to inject arbitrary web script in product deployments that explicitly disable the default CSP.

Fixed a bypass for a reflected cross-site scripting vulnerability affecting OAuth-enabled instances of Mattermost.

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS can occur via OpenGraph data.

An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. It allows XSS via an uploaded file.

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS attacks could occur against an OAuth 2.0 allow/deny page.

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS could occur via a goto_location response to a slash command.

An issue was discovered in Mattermost Server before 3.6.0 and 3.5.2. XSS can occur via a link on an error page.

An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. Display names allow XSS.

An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. XSS can occur via a link on an error page.

An issue was discovered in Mattermost Server before 3.0.0. It allows XSS via a Legal or Support setting.

An issue was discovered in Mattermost Server before 3.1.0. It allows XSS because the noreferrer and noopener protection mechanisms were not in place.

A reflected cross-site scripting vulnerability in the OAuth flow completion endpoints in Mattermost allows an attacker to send AJAX requests on behalf of the victim via sharing a crafted link with a malicious state parameter.

An issue was discovered in Mattermost Server before 3.5.1. XSS can occur via file preview.

An issue was discovered in Mattermost Server before 2.2.0. It allows XSS via a crafted link.

An issue was discovered in Mattermost Server before 2.2.0. It allows XSS because it configures files to be opened in a browser window.

An issue was discovered in Mattermost Server before 3.0.0. It allows XSS via a redirect URL.

Mattermost Jira plugin versions shipped with Mattermost versions 8.1.x before 8.1.10, 9.2.x before 9.2.6, 9.3.x before 9.3.2, and 9.4.x before 9.4.3 fail to escape user-controlled outputs when generating HTML pages, which allows an attacker to perform reflected cross-site scripting attacks against the users of the Mattermost server.

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS could occur via the title_link field of a Slack attachment.

An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. XSS could occur via a channel header.

An issue was discovered in Mattermost Desktop App before 4.4.0. Attackers can open web pages in the desktop application because server redirection is mishandled, aka MMSA-2020-0008.

Mattermost fails to properly check a redirect URL parameter allowing for an open redirect was possible when the user clicked "Back to Mattermost" after providing a invalid custom url scheme in /oauth/{service}/mobile_login?redirect_to=

An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows Phishing because an error page can have a link.

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows an attacker to create a button that, when pressed by a user, launches an API request.

An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. E-mail templates can have a field in which HTML content is not neutralized.

An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5, when used as an OAuth 2.0 service provider. It mishandles a deny action for a redirection.

An issue was discovered in Mattermost Server before 5.18.0, 5.17.2, 5.16.4, 5.15.4, and 5.9.7. An attacker can spoof a direct-message channel by changing the type of a channel.

An issue was discovered in Mattermost Server before 2.1.0. It allows XSS via CSRF.

Mattermost Desktop App versions <=5.7.0 fail to correctly prompt for permission when opening external URLs which allows a remote attacker to force a victim over the Internet to run arbitrary programs on the victim's system via custom URI schemes.

Mattermost 6.3.0 and earlier fails to properly sanitize the HTML content in the email invitation sent to guest users, which allows registered users with special permissions to invite guest users to inject unescaped HTML content in the email invitations.

An issue was discovered in Mattermost Server before 3.1.0. It allows XSS via theme color-code values.

Boards in Mattermost allows an attacker to upload a malicious SVG image file as an attachment to a card and share it using a direct link to the file.

The Feedify – Web Push Notifications plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'platform', 'phone', 'email', and 'store_url' parameters. in all versions up to, and including, 2.4.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Cross-site scripting (XSS) vulnerability in the WPML plugin before 3.1.9 for WordPress allows remote attackers to inject arbitrary web script or HTML via the target parameter in a reminder_popup action to the default URI.

The WP Media Optimizer (.webp) plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘wpmowebp-css-resources’ and 'wpmowebp-js-resources' parameters in all versions up to, and including, 1.4.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

nopCommerce 4.50.1 is vulnerable to Cross Site Scripting (XSS). At Apply for vendor account feature, an attacker can upload an arbitrary file to the system.

A vulnerability was found in 115cms up to 20240807 and classified as problematic. This issue affects some unknown processing of the file /app/admin/view/web_user.html. The manipulation of the argument ks 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.

Microsoft Internet Explorer 8 through 11 allows remote attackers to bypass the XSS filter via a crafted attribute of an element in an HTML document, aka "Internet Explorer XSS Filter Bypass Vulnerability."

Multiple cross-site scripting (XSS) vulnerabilities in Redmine 0.8.5 and earlier allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Cross-site scripting (XSS) vulnerability in the image processor in Zenphoto before 1.4.8 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

The Seraphinite Bulk Discounts for WooCommerce plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 2.4.6. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Multiple cross-site scripting (XSS) vulnerabilities in concrete5 before 5.7.4 allow remote attackers to inject arbitrary web script or HTML via the (1) banned_word[] parameter to index.php/dashboard/system/conversations/bannedwords/success, (2) channel parameter to index.php/dashboard/reports/logs/view, (3) accessType parameter to index.php/tools/required/permissions/access_entity, (4) msCountry parameter to index.php/dashboard/system/multilingual/setup/load_icon, arHandle parameter to (5) design/submit or (6) design in index.php/ccm/system/dialogs/area/design/submit, (7) pageURL to index.php/dashboard/pages/single, (8) SEARCH_INDEX_AREA_METHOD parameter to index.php/dashboard/system/seo/searchindex/updated, (9) unit parameter to index.php/dashboard/system/optimization/jobs/job_scheduled, (10) register_notification_email parameter to index.php/dashboard/system/registration/open/1, or (11) PATH_INFO to index.php/dashboard/extend/connect/.

Cross-site scripting (XSS) vulnerability in the administrative backend in Piwigo before 2.7.4 allows remote attackers to inject arbitrary web script or HTML via the page parameter to admin.php.

Multiple cross-site scripting (XSS) vulnerabilities in Uncanny Owl Tin Canny LearnDash Reporting before 3.4.4 allows authenticated remote attackers to inject arbitrary web script or HTML via the search_key GET Parameter in TinCan_Content_List_Table.php, message GET Parameter in licensing.php, tc_filter_group parameter in reporting-admin-menu.php, tc_filter_user parameter in reporting-admin-menu.php, tc_filter_course parameter in reporting-admin-menu.php, tc_filter_lesson parameter in reporting-admin-menu.php, tc_filter_module parameter in reporting-admin-menu.php, tc_filter_action parameter in reporting-admin-menu.php, tc_filter_data_range parameter in reporting-admin-menu.php, or tc_filter_data_range_last parameter in reporting-admin-menu.php.

Cross-site scripting (XSS) vulnerability on Chiyu BF-630, BF-630W, and BF-660C fingerprint access-control devices allows remote attackers to inject arbitrary web script or HTML via a SCRIPT element.

MediaWiki before 1.19.24, 1.2x before 1.23.9, and 1.24.x before 1.24.2 does not properly handle when the Zend interpreter xml_parse function does not expand entities, which allows remote attackers to inject arbitrary web script or HTML via a crafted SVG file.

Cross-site scripting (XSS) vulnerability in the Scribunto extension for MediaWiki allows remote attackers to inject arbitrary web script or HTML via a function name, which is not properly handled in a Lua error backtrace.

Multiple cross-site scripting (XSS) vulnerabilities in views/add-license-form.php in the Digium Addons module (digiumaddoninstaller) before 2.11.0.7 for FreePBX allow remote attackers to inject arbitrary web script or HTML via the (1) add_license_key, (2) add_license_first_name, (3) add_license_last_name, (4) add_license_company, (5) add_license_address1, (6) add_license_address2, (7) add_license_city, (8) add_license_state, (9) add_license_post_code, (10) add_license_country, (11) add_license_phone, or (12) add_license_email parameter in an add-license-form page to admin/config.php.

The Payments Plugin and Checkout Plugin for WooCommerce: Stripe, PayPal, Square, Authorize.net plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 1.112.0. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Cross-site scripting (XSS) vulnerability in the web applications in Microsoft Exchange Server 2013 Cumulative Update 8 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, aka "Exchange HTML Injection Vulnerability."