WP-GeSHi-Highlight <= 1.4.3 Authenticated (Author+) ReDoS

Uncontrolled Resource Consumption
CVE CVE-2024-13896
CVSS Medium (4.3)
Publicly Published March 20, 2025
Last Updated April 16, 2025
Researcher Pierre Rudloff
Description

The WP-GeSHi-Highlight — rock-solid syntax highlighting for 259 languages plugin for WordPress is vulnerable to Regex denial of service in all versions up to, and including, 1.4.3. This is due to the plugin not properly restricting regexes supplied to the wp_geshi_filter_replace_code() function. This makes it possible for authenticated attackers, with Author-level access and above, to cause a denial of service based on a bad regex.

References

1 affected software package

Software Type Plugin
Software Slug wp-geshi-highlight (view on wordpress.org)
Patched? No
Affected Version
  • <= 1.4.3
Patched Version
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.