CVE-2026-45580

WWBN AVideo Live: stored XSS via unescaped stream key in modeYoutubeLive.php class attribute

State: Published
Severity: 5.4 Medium
Published: May 29, 2026
Updated: Jun 2, 2026
Reserved: May 12, 2026

Description

WWBN AVideo is an open source video platform. In 29.0 and earlier, there is a stored cross-site scripting vulnerability. The Live plugin's "YouTube-style" view renders the live transmission's stream key into an HTML class attribute by raw echo, without htmlspecialchars(). A canStream user can persist a key containing " plus an event handler via plugin/Live/saveLive.php, and any visitor (logged in or anonymous) opening the stream's live page executes attacker JavaScript in the platform origin.

Scores

CVSS	Score	Vector	Source
3.1	5.4 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N	GitHub_M

Weaknesses

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

Affected Products

Product	Versions
AVideoWWBN	<= 29.0Affected

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-m5j4-7r85-2cj2

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