CVE-2025-12844 AI Engine <= 3.1.8 - Authenticated (Subscriber+) PHP Object Injection via PHAR Deserialization
Authenticated attackers can exploit PHP object injection in the AI Engine WordPress plugin to potentially execute code or access data if a POP chain exists.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-12844?
CVE-2025-12844 is a high-severity unsafe deserialization vulnerability in tigroumeow AI Engine – The Chatbot, AI Framework & MCP for WordPress, published on 13 Nov 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-502
Which versions are affected by CVE-2025-12844?
How do I fix CVE-2025-12844?
No fix has been published for CVE-2025-12844 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2025-12844 being exploited?
There is no known exploitation of CVE-2025-12844 in the wild and no public exploit code.
Sources
Also known as GHSA-qxf4-66fg-4h23.