What’s Vulnerable › Vulnerabilities

CVE-2026-33688: AVideo has Pre-Captcha User Enumeration and Account Status Disclosure in Password Recovery Endpoint

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-23 · updated 2026-06-17
• Weakness: CWE-204

Description

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the password recovery endpoint at `objects/userRecoverPass.php` performs user existence and account status checks before validating the captcha. This allows an unauthenticated attacker to enumerate valid usernames and determine whether accounts are active, inactive, or banned — at scale and without solving any captcha — by observing three distinct JSON error responses. Commit e42f54123b460fd1b2ee01f2ce3d4a386e88d157 contains a patch.

Affected products

• WWBN AVideo: through 26.0

References

• https://github.com/WWBN/AVideo/commit/e42f54123b460fd1b2ee01f2ce3d4a386e88d157
• https://github.com/WWBN/AVideo/security/advisories/GHSA-m99f-mmvg-3xmx
• https://github.com/WWBN/AVideo/security/advisories/GHSA-m99f-mmvg-3xmx

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