CVE-2026-41063 Details
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.
A cross-site scripting (XSS) vulnerability has been identified in WWBN AVideo versions through 29.0. The issue arises from an incomplete fix in the `ParsedownSafeWithLinks` class, which fails to properly sanitize `javascript:` URLs in markdown link syntax. While the class overrides certain methods to sanitize raw HTML links, it does not address links created through markdown syntax or auto-linking, allowing for the injection of malicious JavaScript that executes when the link is clicked.
Users can update to AVideo versions 29.0 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 22, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/WWBN/AVideo/security/advisories/GHSA-m7r8-6q9j-m2hc | CISA-ADP | ExploitMitigationVendor Advisory |
| https://github.com/WWBN/AVideo/commit/3ae02fa240939dbefc5949d64f05790fd25d728d | [email protected] | Patch |
| https://github.com/WWBN/AVideo/commit/cae8f0dadbdd962c89b91d0095c76edb8aadcacf | [email protected] | Patch |
| https://github.com/WWBN/AVideo/security/advisories/GHSA-72h5-39r7-r26j | [email protected] | ExploitMitigationVendor Advisory |
| https://github.com/WWBN/AVideo/security/advisories/GHSA-m7r8-6q9j-m2hc | [email protected] | ExploitMitigationVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| wwbn avideo | <= 29.0 |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 24, 2026 | Initial Analysis | [email protected] |
| Apr 22, 2026 | CVE Modified | CISA-ADP |
| Apr 22, 2026 | CVE Modified | [email protected] |
| Apr 21, 2026 | New CVE Received | [email protected] |