CVE-2026-41063

Name: CVE-2026-41063
Creator: NVD / NIST
Published: 2026-04-21T23:16:21.663+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.22%

Last modified Jun 17, 2026

CVE-2026-41063 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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. EPSS estimates a 0.22% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.22%

11.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Wwbn	Avideo	<= 29.0

References

https://github.com/WWBN/AVideo/commit/3ae02fa240939dbefc5949d64f05790fd25d728dPatch
https://github.com/WWBN/AVideo/commit/cae8f0dadbdd962c89b91d0095c76edb8aadcacfPatch
https://github.com/WWBN/AVideo/security/advisories/GHSA-72h5-39r7-r26jExploit, Mitigation, Vendor Advisory
https://github.com/WWBN/AVideo/security/advisories/GHSA-m7r8-6q9j-m2hcExploit, Mitigation, Vendor Advisory
https://github.com/WWBN/AVideo/security/advisories/GHSA-m7r8-6q9j-m2hcExploit, Mitigation, Vendor Advisory

Timeline

Published: Apr 21, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-41063?

How severe is CVE-2026-41063?

CVE-2026-41063 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.

How do I fix CVE-2026-41063?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-41063?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST