CVE-2026-67338

JupyterLab before 4.5.9 contains a stored cross-site scripting vulnerability in the Extension Manager that fails to validate URI protocols in package metadata URLs. Attackers can publish malicious PyPI packages with javascript: URLs in project metadata that execute arbitrary JavaScript in the...

CVE-2026-67338: Improper Neutralization of Encoded URI Schemes in a Web Page

JupyterLab before 4.5.9 contains a stored cross-site scripting vulnerability in the Extension Manager that fails to validate URI protocols in package metadata URLs. Attackers can publish malicious PyPI packages with javascript: URLs in project metadata that execute arbitrary JavaScript in the...

CVE-2026-57530

Milkdown (versions

CVE-2026-57530 Milkdown < 7.21.3 Stored XSS via javascript: URL in link href

Milkdown before 7.21.3 contains a stored cross-site scripting vulnerability in the @milkdown/preset-commonmark and @milkdown/components packages that allows attackers with document write access to execute arbitrary JavaScript in the browser context of any user who opens the document or clicks a...

`lxml_html_clean.Cleaner` does not strip `javascript:` URLs from namespaced URL attributes

lxmlhtmlclean.Cleaner does not strip javascript: URLs from namespaced URL attributes xlink:hrefReporter: Guillem Lefait · Date: 2026-05-10Affected: lxml ≤ 6.1.0 and lxmlhtmlclean ≤ 0.4.4 latest stableConfirmed against: lxml 6.1.0 + lxmlhtmlclean 0.4.4 on Python 3.13.5, 3.14.4, and 3.15.0a8 libxml...

CVE-2026-59923

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, HTMLRenderer.safeurl does not block percent-encoded javascript URIs, allowing attacker-supplied Markdown links or images to bypass URL protections and execute script in rendered HTML. This issue is fixed in version...

CVE-2026-59923

CVE-2026-59923 affects Mistune, a Python Markdown parser. Before 3.3.0, HTMLRenderer.safe_url() does not block percent-encoded javascript URIs, allowing attacker-supplied Markdown links or images to bypass URL protections and execute script in rendered HTML. The issue is fixed in version 3.3.0. E...

CVE-2026-56359

n8n before 2.8.0 contains a cross-site scripting vulnerability in the credential management flow where authenticated users can inject malicious JavaScript URLs into OAuth2 credential Authorization URL fields. Attackers can craft malicious credentials and trick victims into clicking the OAuth...

CVE-2026-58038 Stored XSS through javascript URLs in SVGs generated by EasyTimeline

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Wikimedia Foundation timeline. This vulnerability is associated with program files includes/Timeline.Php, scripts/EasyTimeline.Pl. This issue affects timeline: from before 1.46.0, 1.45.4,...

CVE-2026-58038 Stored XSS through javascript URLs in SVGs generated by EasyTimeline

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Wikimedia Foundation timeline. This vulnerability is associated with program files includes/Timeline.Php, scripts/EasyTimeline.Pl. This issue affects timeline: from before 1.46.0, 1.45.4,...

CVE-2026-55661: Improper Neutralization of Input During Web Page Generation

Tina is a headless content management system. In versions prior to @tinacms/mdx 2.1.7 and tinacms 3.9.3, rich-text parsing and the default link/image renderers did not sanitize the url field on Slate link/image nodes. Content containing javascript: or data:text/html URLs — including case-variant,...

CVE-2026-47733 Rocket.Chat: Missing URL protocol sanitization in ImageElement allows javascript: URLs in markdown images

Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, the ImageElement component in packages/gazzodown renders user-controlled src values directly into and attributes without protocol sanitization. Unlike the analogous LinkSpan component — which uses...

CVE-2026-47733 Rocket.Chat: Missing URL protocol sanitization in ImageElement allows javascript: URLs in markdown images

Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, the ImageElement component in packages/gazzodown renders user-controlled src values directly into and attributes without protocol sanitization. Unlike the analogous LinkSpan component — which uses...

CVE-2026-56698

Nuxt CVE-2026-56698 affects Nuxt 4.0.0–4.4.6 and 3.x up to 3.21.6 (versions before the fixed releases). The navigateTo open option fails to validate script-capable URLs, allowing attacker-controlled javascript: URLs to execute arbitrary scripts in the application's origin when user input is passe...

CVE-2026-56698 Nuxt - Cross-Site Scripting via navigateTo open Option

Nuxt versions 4.0.0 before 4.4.7 and 3.x before 3.21.7 fail to validate script-capable URLs in the navigateTo open option, allowing client-side script execution. Attackers can supply javascript: URLs through the open parameter to execute arbitrary scripts in the application's origin when...

CVE-2026-56698: Improper Neutralization of Input During Web Page Generation

Nuxt versions 4.0.0 before 4.4.7 and 3.x before 3.21.7 fail to validate script-capable URLs in the navigateTo open option, allowing client-side script execution. Attackers can supply javascript: URLs through the open parameter to execute arbitrary scripts in the application's origin when...

CVE-2026-8833

Improper neutralization of HTML-encoded characters in the URL validation function in Checkmk 2.5.0p5, 2.4.0p31, 2.3.0p48, and all 2.2.0 versions allows an authenticated user to bypass URL validation and inject malicious URLs such as javascript: URIs, resulting in cross-site scripting when another...

CVE-2026-8833 XSS in urls

Improper neutralization of HTML-encoded characters in the URL validation function in Checkmk 2.5.0p5, 2.4.0p31, 2.3.0p48, and all 2.2.0 versions allows an authenticated user to bypass URL validation and inject malicious URLs such as javascript: URIs, resulting in cross-site scripting when another...

CVE-2026-41063

WWBN AVideo is an open source video platform. In versions 29.0 and below, an incomplete XSS fix in AVideo's ParsedownSafeWithLinks class overrides inlineMarkup for raw HTML but does not override inlineLink or inlineUrlTag, allowing javascript: URLs in markdown link syntax to bypass sanitization...

CVE-2026-35451

Twenty is an open source CRM. Prior to 1.20.6, a Stored Cross-Site Scripting XSS vulnerability exists in the BlockNote editor component. Due to a lack of protocol validation in the FileBlock component and insufficient server-side inspection of block content, an attacker can inject a javascript: U...