CVE-2026-16953: CWE-639 Authorization Bypass Through User-Controlled Key in AI Engine
CVE-2026-16953 is a vulnerability in the AI Engine WordPress plugin before version 3.6.4. The plugin fails to verify ownership of uploaded chatbot files before allowing their deletion, relying solely on a client-supplied session cookie for authorization. This flaw allows an unauthenticated attacker who obtains a victim's session identifier and file reference to delete the victim's uploaded files.
AI Analysis
Technical Summary
The AI Engine WordPress plugin versions prior to 3.6.4 contain an authorization bypass vulnerability (CWE-639) where the plugin does not verify that a user owns the chatbot files they attempt to delete. Instead, it authorizes deletion requests based only on a session cookie value supplied by the client. An attacker who can obtain a victim's session identifier and file reference can exploit this to delete files uploaded by the victim without authentication.
Potential Impact
An attacker who acquires a victim's session identifier and file reference can delete the victim's uploaded chatbot files. This can result in loss of user data and potential disruption of chatbot functionality for the victim. There is no indication of further privilege escalation or remote code execution from the provided data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to session identifiers and file references to prevent unauthorized deletion. Monitor for updates from the plugin vendor regarding a security patch or update to address this authorization bypass.
CVE-2026-16953: CWE-639 Authorization Bypass Through User-Controlled Key in AI Engine
Description
CVE-2026-16953 is a vulnerability in the AI Engine WordPress plugin before version 3.6.4. The plugin fails to verify ownership of uploaded chatbot files before allowing their deletion, relying solely on a client-supplied session cookie for authorization. This flaw allows an unauthenticated attacker who obtains a victim's session identifier and file reference to delete the victim's uploaded files.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The AI Engine WordPress plugin versions prior to 3.6.4 contain an authorization bypass vulnerability (CWE-639) where the plugin does not verify that a user owns the chatbot files they attempt to delete. Instead, it authorizes deletion requests based only on a session cookie value supplied by the client. An attacker who can obtain a victim's session identifier and file reference can exploit this to delete files uploaded by the victim without authentication.
Potential Impact
An attacker who acquires a victim's session identifier and file reference can delete the victim's uploaded chatbot files. This can result in loss of user data and potential disruption of chatbot functionality for the victim. There is no indication of further privilege escalation or remote code execution from the provided data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to session identifiers and file references to prevent unauthorized deletion. Monitor for updates from the plugin vendor regarding a security patch or update to address this authorization bypass.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-07-24T08:07:54.768Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a76cc2cbf8831d539114766
Added to database: 08/08/2026, 06:26:52 UTC
Last enriched: 08/08/2026, 06:46:47 UTC
Last updated: 08/08/2026, 06:47:58 UTC
Views: 4
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