SB2019031001 - Arbitrary file deletion in WP Fastest Cache plugin for WordPress



SB2019031001 - Arbitrary file deletion in WP Fastest Cache plugin for WordPress

Published: March 10, 2019 Updated: March 25, 2019

Security Bulletin ID SB2019031001
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Path traversal (CVE-ID: CVE-2019-6726)

The vulnerability allows a remote attacker to delete arbitrary files on the target system.

The vulnerability exists due to input validation error when processing directory traversal sequences passed via Referer HTTP header within the wp_postratings_clear_cache() function. A remote attacker can send a specially crafted HTTP request and delete arbitrary .php files on the server, causing denial of service attack.


Remediation

Install update from vendor's website.