WP Compress – Image Optimizer [All-In-One] <= 6.10.33 - Unauthenticated Directory Traversal via css

Path Traversal: '../filedir'
CVE CVE-2023-6699
CVSS 9.1 (Critical)
Publicly Published January 3, 2024
Last Updated January 22, 2024
Researcher Krzysztof Zając - CERT PL


The WP Compress – Image Optimizer [All-In-One] plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 6.10.33 via the css parameter. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information.



Vulnerability Details for WP Compress – Image Optimizer [All-In-One]

Software Type Plugin
Software Slug wp-compress-image-optimizer (view on wordpress.org)
Patched? Yes
Remediation Update to version 6.10.34, or a newer patched version
Affected Version
  • <= 6.10.33
Patched Version
  • 6.10.34

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