AI Engine <= 3.1.8 - Authenticated (Subscriber+) PHP Object Injection via PHAR Deserialization
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- High
- 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-502.
Summary
The AI Engine plugin for WordPress is vulnerable to PHP Object Injection via PHAR Deserialization in all versions up to, and including, 3.1.8 via deserialization of untrusted input in the 'rest_simpleTranscribeAudio' and 'rest_simpleVisionQuery' functions. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
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 3.1.8 | — | No fix listed | CNA |
- AI Engine – The Chatbot, AI Framework & MCP for WordPress Vendortigroumeow Affected up to 3.1.8 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-12844
- 2026-10-03 Alias added: GHSA-qxf4-66fg-4h23
References
Other 6
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c39c1b72-e3e0-44fb-8fb8-602cb0aa61e3?source=cve
- https://github.com/jordymeow/ai-engine/blob/main/classes/modules/files.php#L237
- https://github.com/jordymeow/ai-engine/blob/main/classes/api.php#L799
- https://github.com/jordymeow/ai-engine/blob/main/classes/services/image.php#L43
- https://github.com/jordymeow/ai-engine/blob/main/classes/engines/chatml.php#L960-L967
- https://plugins.trac.wordpress.org/changeset/3392052/
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-2025-12844 · CVE Program
- CVE-2025-12844 · NVD
- FIRST EPSS
- GHSA-qxf4-66fg-4h23 · 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