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CVE-2026-82644: Improper Restriction of Excessive Authentication Attempts in WWBN AVideo

0
High
Published: 08/30/2026 (08/30/2026, 15:30:28 UTC)
Source: CVE Database V5
Vendor/Project: WWBN
Product: AVideo

Description

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 v4.0

Score 8.7high

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vuln. Confidentiality
High
Vuln. Integrity
None
Vuln. Availability
None
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
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

Technical Details

Data Version
5.2
Assigner Short Name
VulnCheck
Date Reserved
2026-08-30T13:38:00.101Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a944043acd9273b49a612a6

Added to database: 08/30/2026, 14:37:55 UTC

Last updated: 08/31/2026, 02:58:47 UTC

Views: 13

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