Public mode

No access to your tenant or devices. Every item links to its source. What this means

CVE-2026-88866

WWBN AVideo LoginControl Stored XSS via User-Agent Header

CVSS 4.0 9.3 CRITICALCVSS 3.1 8.7 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-88866

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-88866

Published

AVideo

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "WWBN",
                    "product": "AVideo",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "git",
                            "lessThanOrEqual": "c3edcc274c389816d434acadac07ee78eaf330c1"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON