CVE-2026-33500: AVideo - Incomplete Fix for CVE-2026-27568: Stored XSS via Markdown `javascript:` URI Bypasses ParsedownSafeWithLinks Sanitization

medium Affects wwbn/avideo. Feed 2026.10.29.4, updated 2026-10-29; published 2026-03-20; advisory modified 2026-07-08.

AVideo - Incomplete Fix for CVE-2026-27568: Stored XSS via Markdown `javascript:` URI Bypasses ParsedownSafeWithLinks Sanitization

Package: wwbn/avideo Composer
Affected versions: <=26.0
Fixed in: no fix recorded
Severity: medium CVSS 5.4
Exploitation: not on CISA KEV · EPSS 0% (13.3th percentile)
Published: 2026-03-20
Source: osv.dev

References

CWE-79

NVD record wwbn/avideo advisories

Am I affected?

Find out in one command. phpwarden checks your composer.lock against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

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composer require --dev phpwarden/phpwarden
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Related advisories

CVE-2024-31819 critical WWBN AVideo Remote Code Execution same package: wwbn/avideo
CVE-2026-33478 critical AVideo Multi-Chain Attack: Unauthenticated Remote Code Execution via Clone Key Disclosure, same package: wwbn/avideo
CVE-2026-29058 critical WWBN AVideo is vulnerable to unauthenticated OS Command Injection via base64Url in objects same package: wwbn/avideo
CVE-2023-32073 high WWBN AVideo command injection vulnerability same package: wwbn/avideo
CVE-2023-30854 high Remote code injection in wwbn/avideo same package: wwbn/avideo
CVE-2026-33482 high AVideo has an OS Command Injection via $() Shell Substitution Bypass in sanitizeFFmpegComm same package: wwbn/avideo