EUVD-2026-76064
GHSA-pr7w-97g9-f8rw
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/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-exploitable IDOR by any authenticated canStream user with no confidentiality or availability impact, only integrity of victim's stream records.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
4DescriptionCVE.org
AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to verify ownership in addLiveLink.php when updating LiveLinks, allowing authenticated users to modify other users' links. A canStream user can overwrite another user's LiveLink HLS source and metadata by supplying an existing linkId, redirecting viewers to attacker-controlled media.
AnalysisAI
Missing ownership verification in AVideo's addLiveLink.php enables any authenticated canStream user to hijack another user's LiveLink by supplying a known linkId in an update request, overwriting the victim's HLS source URL and stream metadata without authorization. The flaw affects AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 and allows an attacker to silently redirect the victim's viewers to attacker-controlled media. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated account with the canStream role on the target AVideo instance; unauthenticated users and accounts lacking canStream privilege cannot exploit this flaw. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 7.1 with VI:H and all confidentiality/availability metrics at None accurately characterizes this as a pure integrity flaw - stream hijacking with no data exfiltration or service disruption. … 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 | Apply the fix referenced in GitHub Security Advisory GHSA-m2c6-f5ww-j26v (https://github.com/WWBN/AVideo/security/advisories/GHSA-m2c6-f5ww-j26v); the exact patched release version is not independently confirmed from available input data, so operators should verify the corrected commit or release tag in the advisory directly. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all AVideo deployments and identify instances running the affected codebase through commit c3edcc274c389816d434acadac07ee78eaf330c1; immediately audit and restrict canStream user account provisioning to essential personnel only. …
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External POC / Exploit Code
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