Quick answers
- Is CVE-2026-15988 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-15988 being exploited in the wild.
- How severe is CVE-2026-15988?
- High severity, with a CVSS score of 8.8, published 1 August 2026.
- Which products and versions are affected?
- Meow Apps AI Engine <= 3.6.5.
- Is there a fix for CVE-2026-15988?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-15988 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-15988?
- Check whether you run Meow Apps AI Engine at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The AI Engine plugin for WordPress is vulnerable to Cross-Site Request Forgery (CSRF) due to missing or incorrect nonce validation on the 'reauth_for_authorize' function in versions up to and including 3.6.5. This vulnerability allows unauthenticated attackers to bypass REST authentication. By leveraging WordPress's '?_method=POST' method-override support, an attacker can convert a GET request (triggered via social engineering, such as a link click by an administrator) into an authenticated POST request to the REST users endpoint. This enables the creation of a new administrator account with attacker-supplied credentials. The issue is addressed in version 3.6.6.
Affected products
- tigroumeow AI Engine – The Chatbot, AI Framework & MCP for WordPress <= 3.6.5
Timeline
- 2026-08-01: advisory: NVD publication date
- 2026-08-01: disclosed: Wordfence disclosure date
References
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.6.2/labs/mcp-oauth.php
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.6.2/labs/mcp-oauth.php
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.6.2/labs/mcp-oauth.php
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.6.2/labs/mcp-oauth.php
- https://plugins.trac.wordpress.org/changeset/3628188/ai-engine/trunk/labs/mcp-oauth.php
- https://plugins.trac.wordpress.org/changeset?old_path=%2Fai-engine/tags/3.6.5&new_path=%2Fai-engine/tags/3.6.6
- https://www.wordfence.com/threat-intel/vulnerabilities/id/45816c45-42bc-4163-b700-a1e913f32c97?source=cve