CVE-2026-86729
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.
Scoring
- Severity
- CRITICAL
- CVSS base score
- 9.1
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
- EPSS probability
- 0.22%
- CWE
- CWE-307
- Published
- 2026-09-08
- Last modified
- 2026-09-10
Affected products
- WWBN AVideo
Weakness type
Related vulnerabilities
- CVE-2026-88770 — Keycloak-services: keycloak-services: device authorization grant issues tokens to brute-force-locked accounts
- CVE-2026-78490 — Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to...
- CVE-2026-6223 — OTP Bypass in Bahçelievler Muncipality's BiHayat App
- CVE-2026-20514 — In Audio HAL, there is a possible information disclosure due to a missing permission check. This...
- CVE-2026-20512 — In Audio HAL, there is a possible escalation of privilege due to improper input validation. This...
- CVE-2026-86186 — AVideo API Rate Limit Bypass via Bot User-Agent Header
- CVE-2026-85237 — Missing Rate Limiting in Email OTP Verification Allows Brute-Force Authentication Bypass
- CVE-2026-13348 — CWE-307: Improper Restriction of Excessive Authentication Attempts vulnerability exists that could...