What’s Vulnerable › Vulnerabilities

CVE-2026-86729: WWBN AVideo Unrestricted Authentication Attempts via get_api_preauthorize

• Severity: high (CVSS 7.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-08 · updated 2026-09-10
• Weakness: CWE-307

Description

WWBN AVideo through commit e01e41ecc (no patched version available) exposes get_api_preauthorize in plugin/API/API.php as a second, undocumented login path. Unlike get_api_signIn, which enforces a rate limit of 10 attempts per 5 minutes via checkRateLimit(), get_api_preauthorize performs the same credential check with no throttling for any client, allowing unlimited remote password guessing against arbitrary accounts, including admin. The endpoint also acts as a credential oracle: it returns the message "Invalid credentials" for both correct and incorrect passwords, while the users_id field in the response body discloses the authenticated identity (users_id:1 on success, users_id:0 on failure), and a correct password establishes a session cookie that remains usable for authenticated API requests. Together these issues permit unauthenticated brute-force account takeover.

Affected products

• WWBN AVideo: through 29.0

References

• https://github.com/WWBN/AVideo/security/advisories/GHSA-vvqm-mgc5-hhx3
• https://www.vulncheck.com/advisories/wwbn-avideo-unrestricted-authentication-attempts-via-get-api-preauthorize

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