CVE-2026-41063 | THREATINT

Description

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. Commit cae8f0dadbdd962c89b91d0095c76edb8aadcacf contains an updated fix.

PUBLISHED Reserved 2026-04-16 | Published 2026-04-21 | Updated 2026-04-22 | Assigner GitHub_M

MEDIUM: 5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

<= 29.0

affected

References

github.com/...AVideo/security/advisories/GHSA-m7r8-6q9j-m2hc exploit

github.com/...AVideo/security/advisories/GHSA-m7r8-6q9j-m2hc

github.com/...AVideo/security/advisories/GHSA-72h5-39r7-r26j

github.com/...ommit/3ae02fa240939dbefc5949d64f05790fd25d728d

github.com/...ommit/cae8f0dadbdd962c89b91d0095c76edb8aadcacf

cve.org (CVE-2026-41063)

nvd.nist.gov (CVE-2026-41063)

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