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CVE-2026-92577 – Broken Access Control / PII Disclosure – AVideo through 29.0

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Summary

CVE-2026-92577 is a broken access control vulnerability in WWBN AVideo’s get_api_video API endpoint. The clean_title parameter handling allows unauthenticated attackers to bypass group-based access restrictions and retrieve videos and associated user data that should be limited to specific user groups. The flaw carries a HIGH severity rating (CVSS v4.0 base score 8.7) and affects AVideo through version 29.0.

Technical details

  • Root cause: The get_api_video API endpoint fails to properly enforce group-based access control when a video is requested via the clean_title parameter (its public slug), classified as CWE-639 (Authorization Bypass Through User-Controlled Key).
  • Trigger conditions: An attacker sends a request to the API endpoint referencing a video by its public slug/clean title rather than its restricted identifier, causing the group-restriction check to be bypassed.
  • Attack vector: Network-based, no authentication and no user interaction required, low attack complexity.
  • Impact: Unauthorized retrieval of videos restricted to specific groups, along with exposure of the video owner’s personally identifiable information — including email address, phone number, physical address, birth date, and administrator status flag.

Affected software

  • WWBN AVideo, all versions through 29.0

Severity

  • CVSS v4.0 Base Score: 8.7 (High) — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
  • CVSS v3.1 Base Score: 7.5 (High) — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Mitigation and recommended actions

  • Immediate: Upgrade AVideo to a version beyond 29.0 that includes the fix for the get_api_video group-restriction bypass, once the vendor publishes a patched release.
  • If no patch is available: Restrict or disable public access to the get_api_video API endpoint at the network or reverse-proxy layer, review video group-restriction configurations, and audit exposed user PII fields (email, phone, address, birth date) for accounts associated with restricted videos. Monitor API access logs for anomalous clean_title-based lookups of restricted content.

References

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