EUVD-2026-75418
GHSA-9c2q-wpvm-f24r
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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
Stored XSS needs a canStream account (PR:L) and victim page view (UI:R); payload crosses into victim browser (S:C) with limited confidentiality/integrity impact, no availability effect.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
3DescriptionCVE.org
AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the LiveLinks plugin where title and description fields are stored without sanitization. A user with canStream permission can inject malicious scripts that execute in the browser of every visitor viewing the live-link page, including administrators, within the site origin.
AnalysisAI
Stored cross-site scripting in WWBN AVideo's LiveLinks plugin lets a low-privileged user with canStream permission persist malicious JavaScript via unsanitized title and description fields, which then executes in the browser of every visitor who views the live-link page - including administrators - inside the site origin. Reported by VulnCheck, the flaw affects AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1; no public exploit identified at time of analysis and it is not in CISA KEV.
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an account with the canStream permission on the target AVideo instance (PR:L - not anonymous), and a victim must view the attacker-created live-link page for the stored payload to fire (UI required). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/SC:H/SI:H, score 9.3) reflects network reachability, low attacker privilege (canStream), and the fact that the payload crosses into victim sessions (subsequent-system impact). … 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-jwmw-j657-28fq - update AVideo to a build newer than commit c3edcc274c389816d434acadac07ee78eaf330c1 (no discrete tagged release version was provided in the input, so confirm the fixed commit/release directly from the GitHub security advisory). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all WWBN AVideo deployments and identify whether LiveLinks plugin is active; audit user accounts to enumerate and restrict canStream permissions to essential administrators; inspect existing live-link pages for suspicious titles or descriptions. …
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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
Leaving vuln.today