CVE-2026-54889

Improper Neutralization of Input During Web Page Generation XSS vulnerability in leandrocp mdex allows cross-site scripting via unsanitized URL schemes in Quill Delta output. 'Elixir.MDEx':todelta/2 converts Markdown into a Quill Delta. 'Elixir.MDEx.DeltaConverter':defaultconvertnode/3 in...

CVE-2026-54889 Unsanitized URL schemes in MDEx Quill Delta output allow javascript: injection (XSS)

Improper Neutralization of Input During Web Page Generation XSS vulnerability in leandrocp mdex allows cross-site scripting via unsanitized URL schemes in Quill Delta output. 'Elixir.MDEx':todelta/2 converts Markdown into a Quill Delta. 'Elixir.MDEx.DeltaConverter':defaultconvertnode/3 in...

keycloak: Keycloak: Cross-site scripting (XSS) via case-insensitive URI validation bypass

A flaw was found in Keycloak. A remote attacker with administrative privileges, specifically those with manage-client permission or access to client registration endpoints, could bypass client Uniform Resource Identifier URI validation. This is achieved by registering a malicious client with a...

CVE-2026-9086

A flaw was found in Keycloak. A remote attacker with administrative privileges, specifically those with manage-client permission or access to client registration endpoints, could bypass client Uniform Resource Identifier URI validation. This is achieved by registering a malicious client with a...

CVE-2026-9086 Keycloak: keycloak: cross-site scripting (xss) via case-insensitive uri validation bypass

A flaw was found in Keycloak. A remote attacker with administrative privileges, specifically those with manage-client permission or access to client registration endpoints, could bypass client Uniform Resource Identifier URI validation. This is achieved by registering a malicious client with a...

EUVD-2026-39473

A flaw was found in Keycloak. A remote attacker with administrative privileges, specifically those with manage-client permission or access to client registration endpoints, could bypass client Uniform Resource Identifier URI validation. This is achieved by registering a malicious client with a...

CVE-2026-9086

Keycloak contains a cross-site scripting vulnerability (CVE-2026-9086) where an attacker with manage-client or client-registration access can bypass URI validation by registering a malicious redirect URI using a case-insensitive javascript: or data: scheme. This allows arbitrary code execution in...

Cross-site Scripting (XSS)

Overview org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the client URI validation process. An attacker can execute arbitrary scripts in...

PT-2026-52506

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description An issue exists where a remote attacker with administrative privileges, specifically those with manage-client permission or access to client registration endpoints, can bypass client Uniform...

Gogs has Stored XSS in `.ipynb` Preview

Summary Although .ipynb previews are sanitized on the server side via /-/api/sanitizeipynb, the inserted content is re-rendered on the client side without sanitization using marked on elements with the .nb-markdown-cell class. During this process, links containing schemes such as javascript: can ...

PT-2026-51122

Name of the Vulnerable Software and Affected Versions Symfony UX Icons affected versions not specified Description The ux icon Twig function is marked as safe for HTML, which prevents Twig from escaping its output. The Icon::toHtml function inlines SVG source code directly into the page. Because...

CVE-2026-53606 sanitize-html has an incomplete URI scheme validation that allows javascript: URIs through action, formaction, data, poster, and background attributes

ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. Versions of sanitize-html prior to 2.17.5 use allowedSchemesAppliedToAttributes default: 'href', 'src', 'cite' to gate the naughtyHref function that blocks...

CVE-2026-45011 Apostrophe has stored XSS via javascript: URL in Image Widget Link

ApostropheCMS is an open-source Node.js content management system. Version 4.29.0 has a stored cross-site scripting vulnerability in the image widget functionality. A user with the Editor role can configure an image widget link to use a javascript: URL payload. Because editors have permission to...

CVE-2026-53722

CVE-2026-53722 affects Nuxt.js prior to versions 3.21.7 and 4.4.7, where did not validate URL schemes bound to its to or href before rendering. Attacker-controlled input (query parameters, CMS fields, or user URLs) can be reflected into the href attribute, enabling reflected DOM-based XSS via ja...

CVE-2026-53722 Nuxt: Reflected XSS in `<NuxtLink>` via unsanitised `javascript:` or `data:` URL

Nuxt is an open-source web development framework for Vue.js. Prior to versions 3.21.7 and 4.4.7, did not validate the URL scheme of values bound to its to or href props before rendering them into the href attribute of the underlying element. When an application binds attacker-controlled input a...

CVE-2026-7186

Stored cross-site scripting in the URL dashboard widget in Checkmk 2.5.0p5, 2.4.0p31, 2.3.0p48, and all 2.2.0 versions allows a user with dashboard editing permissions to store a URL with a dangerous URI scheme such as javascript: that executes scripts in other users' browsers when they view the...

UBUNTU-CVE-2026-7186

Stored cross-site scripting in the URL dashboard widget in Checkmk 2.5.0p5, 2.4.0p31, 2.3.0p48, and all 2.2.0 versions allows a user with dashboard editing permissions to store a URL with a dangerous URI scheme such as javascript: that executes scripts in other users' browsers when they view the...

CVE-2026-7186 Fix stored XSS in URL dashboard widget via dangerous URI schemes

Stored cross-site scripting in the URL dashboard widget in Checkmk 2.5.0p5, 2.4.0p31, 2.3.0p48, and all 2.2.0 versions allows a user with dashboard editing permissions to store a URL with a dangerous URI scheme such as javascript: that executes scripts in other users' browsers when they view the...

CVE-2026-7186

Stored cross-site scripting in the URL dashboard widget in Checkmk 2.5.0p5, 2.4.0p31, 2.3.0p48, and all 2.2.0 versions allows a user with dashboard editing permissions to store a URL with a dangerous URI scheme such as javascript: that executes scripts in other users' browsers when they view the...

EUVD-2026-35061

Stored cross-site scripting in the URL dashboard widget in Checkmk 2.5.0p5, 2.4.0p31, 2.3.0p48, and all 2.2.0 versions allows a user with dashboard editing permissions to store a URL with a dangerous URI scheme such as javascript: that executes scripts in other users' browsers when they view the...