GHSA-2gj6-4vgv-q5hcMediumCVSS 5.4
Mbin 1.2.1 before 1.11.1 contains a stored cross-site scripting vulnerability in EmbedElement:...
🔗 CVE IDs covered (1)
📋 Description
Mbin 1.2.1 before 1.11.1 contains a stored cross-site scripting vulnerability in EmbedElement::buildDestructed() that renders nested Markdown image alt text and URL without HTML escaping. Authenticated users can embed HTML in the alt text of an image inside a link in entries, comments, posts, messages, or bios to run script in viewers' browsers.
🔗 References (7)
- https://github.com/MbinOrg/mbin/security/advisories/GHSA-g3r9-j6w4-2257
- https://nvd.nist.gov/vuln/detail/CVE-2026-126569
- https://github.com/MbinOrg/mbin/commit/736fd39fe9cd59f5d51636d25e1857d88ddbd0bd
- https://github.com/MbinOrg/mbin/blob/v1.11.0/src/Markdown/CommonMark/EmbedElement.php#L57-L67
- https://github.com/MbinOrg/mbin/releases/tag/v1.11.1
- https://www.vulncheck.com/advisories/mbin-1.2.1-before-1.11.1-stored-xss-via-markdown-image-nested-in-link
- https://github.com/advisories/GHSA-2gj6-4vgv-q5hc