CVE-2026-45580CWE-79

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

Medium · published May 29, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
13.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00231 · 13.2th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-05-29T13:14Z
EPSS history
Timeline
  • 29 MAY 13:14Z
    WWBN AVideo Live: stored XSS via unescaped stream key in modeYoutubeLive.php class attribute
    cvelistv5