---
id: CVE-2026-82644
title: >-
  WWBN AVideo (current e01e41ecc and earlier) contains a brute-force rate
  limiting bypass in enforceRateLimit(), which protects login.json.php and 13
  other endpoints
summary: >-
  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::se…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-307
published: '2026-08-30'
updated: '2026-08-30'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-82644'
references:
  - url: 'https://github.com/WWBN/AVideo/security/advisories/GHSA-6893-mcgv-9p2x'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/wwbn-avideo-brute-force-rate-limiting-bypass-via-missing-user-agent
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-08-30T23:59:28.413Z'
epss: 0.00448
epssPercentile: 0.36332
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.