EUVD-2026-72856
GHSA-vpcx-h53g-hfx5
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/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
Network-accessible endpoint requires canStream authentication (PR:L); no scope change; high confidentiality and integrity from stream key exposure and hijack; no availability impact.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
4DescriptionCVE.org
WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to validate ownership of live_restreams_id in resendRestreamer.json.php, allowing authenticated users with canStream to access other users' restream destinations. Attackers can broadcast their live stream to victim-configured restream destinations by supplying arbitrary live_restreams_id values, hijacking YouTube, Facebook, or Twitch streams using victim stream keys.
Articles & Coverage 1
AnalysisAI
Insecure Direct Object Reference (IDOR) in WWBN AVideo allows authenticated users holding the canStream permission to hijack third-party live restream destinations on YouTube, Facebook, and Twitch by supplying arbitrary live_restreams_id values to resendRestreamer.json.php. The endpoint fails to verify that the requesting user owns the referenced restream configuration, exposing victim stream keys and allowing an attacker to broadcast their own content to victim-controlled channels. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an attacker to hold an authenticated account on the target AVideo instance with the canStream permission granted. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 8.6 (AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N) is well-calibrated for this finding: the attack requires authenticated access with the canStream role, which limits blast radius in strict user-provisioning environments but may be broadly granted on community or multi-tenant AVideo instances. … 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 | The primary remediation is to update WWBN AVideo to any commit after c3edcc274c389816d434acadac07ee78eaf330c1 that includes the fix introduced in response to GHSA-7c8r-rj82-c8fv; a precise tagged release version was not identified in available source data, so operators should consult the GitHub advisory page directly at https://github.com/WWBN/AVideo/security/advisories/GHSA-7c8r-rj82-c8fv to confirm the exact patched release. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all WWBN AVideo instances with active integrations to YouTube, Facebook, or Twitch and audit accounts holding canStream permissions-prioritize high-profile channels. …
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