CVE-2026-86189
WWBN AVideo contains a path traversal vulnerability in notify.ffmpeg.json.php that allows unauthenticated attackers to write files to arbitrary locations by supplying a caller-chosen path in the avideoRelativePath parameter. Attackers can replay any previously issued ciphertext as a notifyCode token, which is decrypted but never validated, to bypass authentication and write files to the application root and subdirectories.
Scoring
- Severity
- CRITICAL
- CVSS base score
- 9.8
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- EPSS probability
- 0.41%
- CWE
- CWE-73
- Published
- 2026-09-05
- Last modified
- 2026-09-05
Affected products
- WWBN AVideo
Weakness type
Related vulnerabilities
- CVE-2026-86751 — Snipe-IT before 8.7.0 Arbitrary File Read and SSRF via Markdown
- CVE-2026-86741 — Snipe-IT before 8.7.0 Arbitrary File Read and SSRF via Category EULA
- CVE-2026-79692 — Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to...
- CVE-2026-87815 — SiYuan before v3.8.2 Path Traversal via removeRiffDeck
- CVE-2026-53581 — ntp: write path traversal
- CVE-2026-86995 — n8n: Git Node branch.<name>.remote Config Key Bypasses Sandbox Path Restriction, Enabling Local Git Repository Read
- CVE-2026-78620 — Improper Path Validation in Okta Access Gateway Kerberos Configuration Handling
- CVE-2026-66302 — Skype for Business Remote Code Execution Vulnerability