CVE-2026-82644

WWBN AVideo (current e01e41ecc and earlier) contains a brute-force rate limiting bypass in enforceRateLimit(), which protects login.json.php and 13 other endpoints. The function stores its attempt counter via a cache layer (ObjectYPT::setCacheGlobal) that silently discards writes for any client identified as a bot by isBot(). Because isBot() treats a missing User-Agent header as a bot by default — and also matches common bot identifiers such as 'curl', 'bot', 'crawler', and 'spider' — the counter never increments for such clients, so the rate limit never fires. An unauthenticated attacker can therefore submit unlimited login attempts (e.g., by omitting the User-Agent header or using curl's default User-Agent), enabling unrestricted password-guessing attacks.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/WWBN/AVideo/security/advisories/GHSA-6893-mcgv-9p2x
https://www.vulncheck.com/advisories/wwbn-avideo-brute-force-rate-limiting-bypass-via-missing-user-agent
https://github.com/WWBN/AVideo/security/advisories/GHSA-6893-mcgv-9p2x

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-30 15:16

Updated : 2026-09-01 15:17

NVD link : CVE-2026-82644

Mitre link : CVE-2026-82644

CVE.ORG link : CVE-2026-82644

JSON object : View

Products Affected

No product.

CWE

CWE-307

Improper Restriction of Excessive Authentication Attempts

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