EUVD-2026-76055
GHSA-4773-89rr-mp32
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Injection requires a high-privilege admin (PR:H) and victim admin interaction (UI:R); stored script crosses into another admin's session context (S:C) enabling session/data compromise, no availability impact.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
3DescriptionCVE.org
WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in UserGroups::setGroup_name() that fails to sanitize group_name input. Administrators with canAdminUserGroups permission can inject malicious HTML and JavaScript that executes in the browser when other administrators access the user manager interface.
AnalysisAI
Stored cross-site scripting in WWBN AVideo (open-source video CMS) allows an administrator holding the canAdminUserGroups permission to persist malicious HTML/JavaScript through UserGroups::setGroup_name(), which then executes in the browser of any other administrator who opens the user manager interface. Affects all builds through commit c3edcc274c389816d434acadac07ee78eaf330c1. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an authenticated AVideo administrator account that holds the canAdminUserGroups permission to write the malicious group_name (PR:H). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 9.2 (AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N) appears overstated for what is a privileged-to-privileged stored XSS. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Patch available per vendor advisory (GHSA-qm3h-2jrx-xmg6); no exact fixed release version is stated in the input, so upgrade to the latest AVideo build past commit c3edcc274c389816d434acadac07ee78eaf330c1 and verify against the advisory. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit all administrator accounts holding the canAdminUserGroups permission and restrict this permission to only personnel with documented operational need; review audit logs for suspicious user group modifications in the past 90 days. …
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A cross-site scripting (xss) vulnerability exists in the functiongetOpenGraph videoName functionality of WWBN AVideo 11.
An issue in WWBN AVideo v.12.4 through v.14.2 allows a remote attacker to execute arbitrary code via the systemRootPath
A directory traversal vulnerability exists in the unzipDirectory functionality of WWBN AVideo 11.6 and dev master commit
An insufficient entropy vulnerability exists in the salt generation functionality of WWBN AVideo dev master commit 15fed
Unauthenticated SQL injection in AVideo before 24.0.
OS injection vulnerability in World Wide Broadcast Network AVideo version before 12.4, allows attackers to execute arbit
A reflected cross-site scripting (xss) vulnerability exists in the charts tab selection functionality of WWBN AVideo 11.
A cross-site scripting (xss) vulnerability exists in the channelBody.php user name functionality of WWBN AVideo 11.6 and
A cross-site scripting (xss) vulnerability exists in the videoAddNew functionality of WWBN AVideo 11.6 and dev master co
An insufficient entropy vulnerability exists in the userRecoverPass.php recoverPass generation functionality of WWBN AVi
WWBN AVideo is an open source video platform. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable
AVideo is an open source video platform. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low
Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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