Unrestricted file upload in tigroumeow AI Engine – The Chatbot, AI Framework & MCP for…
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-434.
Summary
The AI Engine – The Chatbot and AI Framework for WordPress plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the `rest_helpers_update_media_metadata` function in all versions up to, and including, 3.3.2. This makes it possible for authenticated attackers, with Editor-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. The attacker can upload a benign image file, then use the `update_media_metadata` endpoint to rename it to a PHP file, creating an executable PHP file in the uploads directory.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| tigroumeow | AI Engine – The Chatbot, AI Framework & MCP for WordPress | up to 3.3.2 | — | No fix listed | CNA |
- AI Engine – The Chatbot, AI Framework & MCP for WordPress Vendortigroumeow Affected up to 3.3.2 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-1400
- 2026-10-03 Alias added: GHSA-h8c7-c2x8-j8gf
References
Other 4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d5227269-4406-4fcf-af37-f1db0af857d6?source=cve
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.3.0/classes/rest.php#L1104
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.3.0/classes/rest.php#L1141
- https://plugins.trac.wordpress.org/changeset/3447500/ai-engine/trunk/classes/rest.php
More tigroumeow vulnerabilities
- TI-2025-10772 AI Engine <= 3.1.3 - Unauthenticated Sensitive Information Exposure to Privilege Escalation CVSS 3.1CRITICAL 9.8
- TI-2023-28063 WordPress AI Engine plugin <= 1.9.98 - Unauthenticated Arbitrary File Upload vulnerability CVSS 3.1CRITICAL 10.0
- TI-2024-09725 AI-Engine < 2.6.5 - Admin+ SQLi CVSS 3.1HIGH 7.2
- TI-2024-05988 AI Engine < 2.5.1 - Admin+ RCE CVSS 3.1HIGH 7.2
- TI-2024-19264 WordPress AI Engine plugin <= 2.1.4 - Server Side Request Forgery (SSRF) vulnerability CVSS 3.1MEDIUM 6.8
- TI-2024-06230 AI Engine < 2.4.8 - Admin+ SQLi CVSS 3.1MEDIUM 4.7
Sources
- CVE-2026-1400 · CVE Program
- CVE-2026-1400 · NVD
- FIRST EPSS
- GHSA-h8c7-c2x8-j8gf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences