CVE-2026-50146

Astro is a web framework. Prior to 6.3.3, when a component uses a client: directive, Astro inserts named slot content into a data-astro-template attribute without HTML escaping the slot name allowing an attacker to break out of the attribute context and inject arbitrary HTML, resulting in reflect...

CVE-2026-39823 Bypass of meta content URL escaping causes XSS in html/template

CVE-2026-27142 fixed a vulnerability in which URLs were not correctly escaped inside of a tag's attribute. If the URL content were to insert ASCII whitespaces around the '=' rune inside of the attribute, the escaper would fail to similarly escape it, leading to XSS...

CVE-2026-41650

fast-xml-parser allows users to process XML from JS object without C/C++ based libraries or callbacks. Prior to version 5.7.0, XMLBuilder does not escape the "--" sequence in comment content or the "" sequence in CDATA sections when building XML from JavaScript objects. This allows XML injection...

Amazon Linux 2023 : containerd, containerd-stress (ALAS2023-2026-1534)

"It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1534 advisory. url.Parse insufficiently validated the host/authority component and accepted some invalid URLs. CVE-2026-25679 On Unix platforms, when listing the contents of a directory using File.ReadDir o...

BIT-GOLANG-2026-27142 URLs in meta content attribute actions are not escaped in html/template

Actions which insert URLs into the content attribute of HTML meta tags are not escaped. This can allow XSS if the meta tag also has an http-equiv attribute with the value "refresh". A new GODEBUG setting has been added, htmlmetacontenturlescape, which can be used to disable escaping URLs in actio...

AZL-79622 CVE-2026-27142 affecting package golang 1.26.0-1

Actions which insert URLs into the content attribute of HTML meta tags are not escaped. This can allow XSS if the meta tag also has an http-equiv attribute with the value "refresh". A new GODEBUG setting has been added, htmlmetacontenturlescape, which can be used to disable escaping URLs in actio...

CVE-2026-27142

Actions which insert URLs into the content attribute of HTML meta tags are not escaped. This can allow XSS if the meta tag also has an http-equiv attribute with the value "refresh". A new GODEBUG setting has been added, htmlmetacontenturlescape, which can be used to disable escaping URLs in actio...

CVE-2026-27142

CVE-2026-27142 is disclosed as an issue where URLs inserted into the content attribute of HTML meta tags were not escaped, potentially enabling XSS when the meta tag has http-equiv="refresh". Public advisories (ALAS2-2026-3310, ALAS2-2026-3313, ALAS2-2026-3311, ALAS2023-2026-1771, etc.) link this...

CVE-2025-61636

Improper Neutralization of Input During Web Page Generation XSS or 'Cross-site Scripting' vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/htmlform/fields/HTMLButtonField.Php. This issue affects MediaWiki: from before 1.39.14, 1.43.4,...

CVE-2024-7132

The Page Builder Gutenberg Blocks WordPress plugin before 3.1.13 does not escape the content of post embed via one of its block, which could allow users with the capability to publish posts editor and admin by default to perform Stored Cross-Site Scripting attacks even when the unfilteredhtml...

CVE-2020-2217

Jenkins Compatibility Action Storage Plugin 1.0 and earlier does not escape the content coming from the MongoDB in the testConnection form validation endpoint, resulting in a reflected cross-site scripting XSS vulnerability...

Mozilla: Bypass of CSP sandbox directive when embedding

Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content. This vulnerability affects Thunderbird 91.4.0, Firefox ESR 91.4.0, and Firefox 95...