Advanced Custom CSS
Advanced Custom CSS has one disclosed vulnerability in the WordSec catalog, all reported in 2025; it remains unpatched as of September 2026. Their average CVSS score is 6.1, and the most serious one scores 6.1 out of 10.
The most common weakness is Cross-Site Scripting, behind 1 of the records (100%).
The one issue recorded for Advanced Custom CSS has no published fix yet, which makes virtual patching the only reliable mitigation. The oldest unresolved one dates back to 2025.
All of these findings were reported by Nguyen Xuan Chien. Advanced Custom CSS is installed on roughly 50 WordPress sites, so each unpatched flaw has a wide blast radius. The current release is tested up to WordPress 5.4.21.
CVE-2025-68878Advanced Custom CSS <= 1.1.0 - Reflected Cross-Site Scripting
Read the full analysisVulnerability Records
Advanced Custom CSS
Author
prasadkirpekar
Add custom css in your site. Follow given simple steps to get your task done. Install Advanced Custom CSS. Activate Plugin. Insert CSS code in respected code blocks. Save settings And you done! Control when to add CSS in page source Set Global CSS You can set global CSS rules that will be added to every page of website. Set Post specific CSS You can set seperate CSS rules that will be added only when single post is displayed. Set Page specific CSS Similar to Post CSS, You can set seperate CSS rules that will be added only when single page is displayed. For more support Buy premium support Contact me Reach me here
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