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

Path Traversal: '../filedir'
CVE CVE-2023-6699
CVSS Critical (9.1)
Publicly Published January 3, 2024
Last Updated July 29, 2024
Researcher Krzysztof Zając
Description

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.

References

1 affected software package

Software Type Plugin
Software Slug wp-compress-image-optimizer (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 6.10.33
Patched Version
  • 6.10.34
This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.
License: Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy. License Detail.