File deletion via tokenless cross-site GET
Published Sep 3, 2026 · Updated Sep 3, 2026
Cross-site request forgery in WWBN AVideo through commit c91b5975d allows remote attackers to delete a victim's live poster and thumbnail files. The removePoster.php endpoint accepts live_servers_id from GET, checks only whether the victim is logged in, and unlinks the account's poster and thumbnail paths without enforcing POST or validating a CSRF token. Exploitation requires the authenticated victim to visit attacker-controlled content, and deletion is limited to that victim's live poster and thumbnail files.
Summary
What happened
Cross-site request forgery in WWBN AVideo through commit c91b5975d allows remote attackers to delete a victim's live poster and thumbnail files. The removePoster.php endpoint accepts live_servers_id from GET, checks only whether the victim is logged in, and unlinks the account's poster and thumbnail paths without enforcing POST or validating a CSRF token. Exploitation requires the authenticated victim to visit attacker-controlled content, and deletion is limited to that victim's live poster and thumbnail files.
The record
- CVE
- CVE-2026-85161
- Published
- Sep 3, 2026
- Updated
- Sep 3, 2026
- Vendor
- WWBN
- Product
- AVideo
- Classifications
- CWE-352, T1485
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 3, 2026CVE publishedPublication date reported by the CVE source.
- Sep 3, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=0 <=c91b5975d
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- Cross-site image-tag deletion proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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