Medium severity · published Sep 16, 2026
CVE-2026-92584
AVideo through 29.0 Stored Cross-Site Scripting via User-Agent Header
6.1
CVSS
0.3%
EPSS
No
On KEV
Description
AVideo through 29.0 (current revision e01e41ecc) contains a stored cross-site scripting vulnerability. The unauthenticated view-counter endpoint objects/videoAddViewCount.json.php reaches VideoStatistic::save(), which writes the caller's User-Agent (via getUserAgentInfo(), which returns unrecognized agent strings verbatim) directly into the `app` column of the videos_statistics table without invoking the sanitizing setter setApp(); normalizeApp() only truncates the value to 45 characters. The video owner's and administrator's statistics page (view/videoViewsInfo.php) renders this field in a DataTables 1.12.1 column with an unescaped renderer, and DataTables assigns cell content using innerHTML, so attacker-supplied HTML is parsed and executed in the privileged user's authenticated session when the statistics page is viewed. No patched version was available at the time of the advisory.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AV
AVideo · WWBN
through 29.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-92584
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-92584
github.com
https://github.com/WWBN/AVideo/security/advisories/GHSA-6rgh-c296-5j86
www.vulncheck.com
https://www.vulncheck.com/advisories/avideo-through-29.0-stored-cross-site-scripting-via-user-agent-header
More from AVideo
10.0
CVE-2026-40911
WWBN AVideo YPTSocket WebSocket Broadcast Relay Leads to Unauthenticated Cross-User JavaScript Execution via Client-Side eval() Sinks
10.0
CVE-2026-33478
AVideo Multi-Chain Attack: Unauthenticated Remote Code Execution via Clone Key Disclosure, Database Dump, and Command Injection
9.9
CVE-2022-30547
A directory traversal vulnerability exists in the unzipDirectory functionality of WWBN AVideo 11.6 and dev master commit 3f7c0364
9.8
CVE-2026-86189
WWBN AVideo Unauthenticated Path Traversal via notify.ffmpeg.json.php
9.8
CVE-2026-85154
WWBN AVideo Authentication Bypass via Non-Expiring video_id_hash
