CVE-2026-16953

AI Engine < 3.6.4 - Unauthenticated Cross-Session Chatbot File Deletion via Forgeable Session Cookie

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

AI Engine

CVSS v3.1 CNA

4.8 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

EPSS

0.27% chance of exploitation in the next 30 days, 18th percentile

Published

2026-08-08

Updated

2026-08-11

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/8f5460a7-9764-4ce1-9cb4-8202b192765d/

References

• CVE Record
• NVD entry