CVE-2026-4350 — The Perfmatters plugin for WordPress is vulnerable to arbitrary file deletion…
Image via perfmatters.io
🚨 CVE-2026-4350 The Perfmatters plugin for WordPress is vulnerable to arbitrary file deletion via path traversal in all versions up to, and including, 2.5.9.1. This is due to the PMCS::actionhandler() method processing the $GET['delete'] parameter without any sanitization, authorization check, or nonce verification.
What This Means For You
- New vulnerability disclosed — verify if your stack is exposed.
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-4350 | Path Traversal | Perfmatters plugin for WordPress versions up to and including 2.5.9.1. Vulnerable component: PMCS::actionhandler() method. Vulnerability occurs when processing the $GET['delete'] parameter without sanitization, authorization check, or nonce verification. |
| CVE-2026-4350 | Arbitrary File Deletion | Perfmatters plugin for WordPress versions up to and including 2.5.9.1. Vulnerable component: PMCS::actionhandler() method. Vulnerability occurs when processing the $GET['delete'] parameter without sanitization, authorization check, or nonce verification. |
Source & Attribution
| Source Platform | Telegram |
| Channel | CVE Notify |
| Published | April 03, 2026 at 11:26 UTC |
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