Vulnerability · Published Aug 8, 2026 · Assigned by WPScan
CVE-2026-16953AI Engine < 3.6.4 - Unauthenticated Cross-Session Chatbot File Deletion via Forgeable Session Cookie
Medium 4.8
In plain English
A medium-severity authorization bypass via user-controlled key in AI Engine from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).
Severity (CVSS 3.1)4.8Medium
Exploit odds (30 days)0.3%top 80.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The AI Engine WordPress plugin before 3.6.4 does not verify ownership of a guest's uploaded chatbot files before deletion, authorising the action solely by a client-supplied session cookie value, so an unauthenticated attacker who obtains a victim's session identifier and file reference can delete that victim's uploaded files.
Affected products (as reported)
Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
References
- https://wpscan.com/vulnerability/8f5460a7-9764-4ce1-9cb4-8202b192765d/ exploit, vdb-entry, technical-description