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CVE-2026-84480 – Password Recovery Token Expiration Bypass Leading to Account Takeover – WWBN AVideo

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Summary

CVE-2026-84480 is a critical insufficient session/token expiration vulnerability (CWE-613) in WWBN AVideo’s password recovery workflow. The endpoint that finalizes a password reset, userRecoverPassSave.json.php, fails to enforce the recovery token’s expiration window, allowing an attacker holding a previously issued token to reset a victim’s password at any time. The flaw carries a CVSS score of 9.3 and can lead to full account takeover, including administrator accounts.

Technical details

  • Root cause: userRecoverPassSave.json.php performs a raw string comparison of the recovery token instead of calling isRecoverPassValid()/checkRecoverPass(), which enforces the intended 24-hour token validity window.
  • A separate ownership-check bug uses a less-than (<) comparison instead of strict equality (===), allowing a token issued for a higher user ID to also validate against lower user IDs, including the administrator account.
  • Attack vector: Network, no authentication or user interaction required; the attacker only needs to obtain a recovery token that was previously generated (e.g., from old emails, backups, logs, or archives).
  • Impact: Because tokens never truly expire and ownership checks can be bypassed, an attacker can reset arbitrary account passwords indefinitely, resulting in complete account compromise and, for admin accounts, full control of the AVideo installation.

Affected software

  • WWBN AVideo, all versions from 0 through 29.0
  • Confirmed vulnerable up to commit e01e41ecc and earlier

Severity

  • CVSS v4.0: 9.3 (Critical) — AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H
  • CVSS v3.1: 9.8 (Critical) — AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: No official patched release is currently available. The project maintainers have published a suggested source-code fix (suggested-fix.patch) that replaces the direct token comparison with checkRecoverPass() and corrects the ownership check to use strict equality; apply this patch to userRecoverPassSave.json.php as an interim fix.
  • If unable to patch: Restrict or disable the password recovery feature from the internet-facing interface, rotate all admin and user passwords, invalidate/expire all existing recovery tokens at the database level, and monitor logs for repeated or delayed use of userRecoverPassSave.json.php requests.
  • Track the vendor repository for an official release that resolves GHSA-j9p7-hm85-9v77 and upgrade as soon as it is published.

How IONIX identifies potentially affected assets

IONIX matches the following signals against data already collected when it crawled the asset; identifying the technology sends no request beyond that crawl.

  • Page title: Sign In - AVideo, AVideo
  • Raw response body: id="avideoModal", avideoAlert(, avideoModalIframe(

References

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