WP-GeSHi-Highlight — rock-solid syntax highlighting for 259 languages: A security weakness
WP-GeSHi-Highlight — rock-solid syntax highlighting for 259 languages is affected by a security weakness. Exposure depends on how the affected operation is made reachable by the site. The resulting impact depends on how the affected component exposes the vulnerable operation.
- Component
- WP-GeSHi-Highlight — rock-solid syntax highlighting for 259 languages
- Plugin slug
wp-geshi-highlight- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Apr 10, 2025
This CVE was published Apr 10, 2025 and is one of 1 known issue for this plugin.
Update, patch or deactivate.
Update WP-GeSHi-Highlight — rock-solid syntax highlighting for 259 languages to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The WP-GeSHi-Highlight — rock-solid syntax highlighting for 259 languages WordPress plugin through 1.4.3 processes user-supplied input as a regular expression via the wp_geshi_filter_replace_code() function, which could lead to Regular Expression Denial of Service (ReDoS) issue
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H