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High 8.7Published Sep 10, 2026

CVE-2026-88866WWBN AVideo LoginControl Stored XSS via User-Agent Header

Updated under an hour ago ()

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It affects WWBN AVideo. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
8.7 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Weakness (CWE)
CWE-79
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
VulnCheck
NVD analysis
Deferred
Record last updated
Sep 15, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
WWBN AVideo
wwbn:avideo (from the name)
through c3edcc274c389816d434acadac07ee78eaf330c1
CNA record

References

  • vendor-advisory
  • third-party-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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