AI Engine 2.8.0 — 2.8.3 - Authenticated (Subscriber+) Insufficient Authorization to Privilege Escalation via MCP
CVE-2025-5071Published · Updated Action summary
Affected: 2.8.0 – 2.8.3Update to 2.8.4 or newer
All remediation steps- Severity
- High8.8
- CVSS
- 8.8CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Weakness
- CWE-863 Incorrect Authorization
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
AI Engine – MCP Server & AI Chatbot for WordPress, with Claude, ChatGPT & Gemini ai-engine
- Affected2.8.0 – 2.8.3
- Patched in2.8.4
Update to 2.8.4 or newer.
You are affected if you run 2.8.0 – 2.8.3. Version 2.8.4 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under AI Engine – MCP Server & AI Chatbot for WordPress, with Claude, ChatGPT & Gemini.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 2.8.4, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch AI Engine – MCP Server & AI Chatbot for WordPress, with Claude, ChatGPT & Gemini to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to István Márton.
The AI Engine plugin for WordPress is vulnerable to unauthorized modification of data and loss of data due to a missing capability check on the 'Meow_MWAI_Labs_MCP::can_access_mcp' function in versions 2.8.0 to 2.8.3. This makes it possible for authenticated attackers, with subscriber-level access and above, to have full access to the MCP and run various commands like 'wp_create_user', 'wp_update_user' and 'wp_update_option', which can be used for privilege escalation, and 'wp_update_post', 'wp_delete_post', 'wp_update_comment' and 'wp_delete_comment', which can be used to edit and delete posts and comments.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in AI Engine – MCP Server & AI Chatbot for WordPress, with Claude, ChatGPT & Gemini
All 46| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting ≤3.9.1Update to 3.9.2 | CVE-2026-123478 | |
| Medium4.3 | Cross-Site Request Forgery ≤3.8.8Update to 3.8.9 | CVE-2026-65566 | |
| High7.5 | Missing Authorization to Administrator Account Takeover via Unauthenticated MCP OAuth Client Registration ≤3.8.6Update to 3.8.7 | CVE-2026-110732 | |
| Medium4.2 | Authenticated (Subscriber+) Limited Media File Deletion via 'metadata' Parameter ≤3.8.4Update to 3.8.5 | CVE-2026-107745 | |
| Medium4.3 | Missing Authorization ≤3.8.6Update to 3.8.7 | CVE-2026-112828 |
- High7.2Unauthenticated Stored Cross-Site Scripting
≤3.9.1Update to 3.9.2
- Medium4.3Cross-Site Request Forgery
≤3.8.8Update to 3.8.9
- High7.5Missing Authorization to Administrator Account Takeover via Unauthenticated MCP OAuth Client Registration
≤3.8.6Update to 3.8.7
- Medium4.2Authenticated (Subscriber+) Limited Media File Deletion via 'metadata' Parameter
≤3.8.4Update to 3.8.5
- Medium4.3Missing Authorization
≤3.8.6Update to 3.8.7
Timeline
CVE published
Severity high, CVSS 8.8
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.
