CVE-2026-4350 in Perfmatters Plugin

Sumário (Inglês)

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 any sanitization, authorization check, or nonce verification. The unsanitized filename is concatenated with the storage directory path and passed to `unlink()`. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary files on the server by using `../` path traversal sequences, including `wp-config.php` which would force WordPress into the installation wizard and allow full site takeover.

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Responsável

Wordfence

Reservar

17/03/2026

Divulgação

03/04/2026

Estado

Confirmado

Inscrições

VulDB provides additional information and datapoints for this CVE:

ID	Vulnerabilidade	CWE	Exp	Con	CVE
355081	Perfmatters Plugin action_handler Travessia de Diretório	22	Não definido	Não definido	CVE-2026-4350

Fontes

• MITRE
• NVD
• CVE Details