What’s Vulnerable › Vulnerabilities
CVE-2026-16953: AI Engine < 3.6.4 - Unauthenticated Cross-Session Chatbot File Deletion via Forgeable Session Cookie
- Severity: medium (CVSS 4.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-08 · updated 2026-08-26
- Weakness: CWE-639
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
- AI Engine: before 3.6.4 — fixed in 3.6.4
How to fix
Upgrade to a fixed version: AI Engine 3.6.4. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2026-16953 or the next vulnerability affects your stack