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CVE-2026-4350 - Vulnerability Analysis

HighCVSS: 8.1

Last Updated: April 3, 2026

Perfmatters WordPress Plugin - Path Traversal

Published: April 3, 2026Updated: April 3, 2026Remote Exploitable

Overview

Perfmatters WordPress plugin <= 2.5.9.1 contains a path traversal vulnerability caused by unsanitized processing of the 'delete' parameter in PMCS::action_handler(), letting authenticated attackers delete arbitrary files including wp-config.php, exploit requires Subscriber-level access or higher.

Severity & Score

Severity: High
CVSS Score: 8.1
EPSS Score: 10.0%(Probability of exploitation in next 30 days)

Impact

Authenticated attackers can delete arbitrary files, potentially leading to full site takeover.

Mitigation

Update to a version later than 2.5.9.1 or the latest available version.

Social Media Activity(2 posts)

TheHackerWire
TheHackerWire
@thehackerwire
Apr 4, 2026

🟠 CVE-2026-4350 - High (8.1) 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::action_handler()` method processing the `$_GET['delete']` parameter without a... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-4350/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post
TheHackerWire
TheHackerWire
@thehackerwire
Apr 4, 2026

🟠 CVE-2026-4350 - High (8.1) 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::action_handler()` method processing the `$_GET['delete']` parameter without a... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-4350/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post

Details

CVE ID
CVE-2026-4350
Severity
High
CVSS Score
8.1
Type
path_traversal
Status
unconfirmed
EPSS
10.0%
Social Posts
2

CWE

  • CWE-22

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

EPSS Score

10.0%Probability of exploitation in the next 30 days