CVE-2026-66825: Improper Neutralization of Input During Web Page Generation

Pivotick contains a cross-site scripting vulnerability in the sidebar property-list component. Values associated with link-like properties, such as url, uri, href, link, website, or homepage, were rendered as hyperlinks without validating their URL scheme. An attacker able to supply or influence...

CVE-2026-65592 n8n before 1.123.64 Stored DOM XSS via cachedResultUrl

n8n before 1.123.64, 2.29.8, and 2.30.1 contains a stored DOM cross-site scripting vulnerability in the Resource Locator component, which passes the workflow-persisted cachedResultUrl parameter to window.open without scheme validation. An attacker with workflow creation/editing privileges can cra...

GHSA-5QHF-9PHG-95M2 Loofah `allowed_uri?` does not detect `javascript:` URIs split by numeric character references without semicolons

Summary Loofah::HTML5::Scrub.alloweduri? does not correctly reject javascript: or vbscript: URIs when the scheme is split by a numeric character reference that has no trailing semicolon. A browser decodes such references and resolves the URL to an executable javascript: scheme, while alloweduri?...

RUSTSEC-2026-0213 XSS in ammonia via SVG `animate` and `set` animation tags

The following SVG will produce a link with a javascript scheme. If the user clicks this link, they will run it. xml Click set Ammonia did not apply attribute filters based on attributeName, so the contents of the to, from, and values tags were not sanitized as URLs. Applications that do not...

XSS in ammonia via SVG `animate` and `set` animation tags

The following SVG will produce a link with a javascript scheme. If the user clicks this link, they will run it. xml Click set Ammonia did not apply attribute filters based on attributeName, so the contents of the to, from, and values tags were not sanitized as URLs. Applications that do not...

PT-2026-63794

Summary Loofah::HTML5::Scrub.allowed uri? does not correctly reject javascript: URIs when the scheme is split or prefixed by the HTML5 named character references tab or line feed. This is a bypass of the fix for GHSA-46fp-8f5p-pf2m, which handled the equivalent numeric character references , , bu...

PT-2026-63458

The following SVG will produce a link with a javascript scheme. If the user clicks this link, they will run it. xml Click set Ammonia did not apply attribute filters based on attributeName, so the contents of the to, from, and values tags were not sanitized as URLs. Applications that do not...

Cross-site Scripting (XSS)

Overview loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Affected versions of this package are vulnerable to Cross-site Scripting XSS in the Loofah::HTML5::Scrub.alloweduri? method, which uses CGI.unescapeHTML and therefore...

CVE-2026-45368

Kirby CMS is affected in versions prior to 4.9.1 and 5.4.1 by an XSS in URL handling for several first‑party renderers that emit : the (link: …) KirbyTag, the link parameter of (image: …), the image block's link field, and the HTML importer for blocks. The underlying issue does not filter dangero...

CVE-2026-45368 Kirby: Cross-site scripting (XSS) from links in KirbyTags and image blocks in the site frontend

Kirby is an open-source content management system. In versions prior to 4.9.1 and 5.4.1, the underlying URL methods for the KirbyTags and image blocks components did not filter out malicious URL values that resolve to script execution. The vulnerability affects four first-party Kirby renderers th...

GHSA-4JHM-JV67-739F `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:href Reporter: Guillem Lefait · Date: 2026-05-10 Affected: lxml ≤ 6.1.0 and lxmlhtmlclean ≤ 0.4.4 latest stable Confirmed against: lxml 6.1.0 + lxmlhtmlclean 0.4.4 on Python 3.13.5, 3.14.4, and 3.15.0a8...

CVE-2026-53606

A flaw was found in sanitize-html, an HTML sanitizer library. This vulnerability allows a remote attacker to perform Cross-Site Scripting XSS attacks. The issue occurs because the sanitizer does not properly validate dangerous URI schemes, such as javascript:, when they are used in certain HTML...

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...

EUVD-2026-40178

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...

CVE-2026-54889: Improper Neutralization of Input During Web Page Generation

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...

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...