Answer in brief
CVE-2026-88866 records a Critical severity (CVSS 9.3) vulnerability in WWBN AVideo LoginControl Stored XSS via User-Agent Header. The current sources do not mark it as known exploited. The current feed maps WWBN/AVideo (generic), WWBN/AVideo (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps WWBN/AVideo (generic), WWBN/AVideo (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| WWBN/AVideogeneric | 0 | Not reported |
| WWBN/AVideogeneric | >=0 <=c3edcc274c389816d434acadac07ee78eaf330c1 | Not reported |
Published upstream
Sep 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 10, 2026
WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the LoginControl plugin that fails to encode the User-Agent header before storing it in login history. Attackers with any valid login account can inject malicious scripts in the User-Agent header that execute in administrator browsers when viewing the Login History page, allowing script execution within the administrator session.
Quoted source text, attributed separately from HOL analysis.