CVE-2026-16558
MediumCVSS 5.4Exploitation Probability (EPSS)
Low risk3th percentile - higher than 3% of all known CVEs
Summary
The YMC Filter WordPress plugin before version 3.12.8 does not sanitize and escape a layout builder setting before outputting it on a public endpoint, and does not verify object ownership when the setting is saved. Users with the Contributor role and above can store JavaScript that executes in the browser of any visitor viewing an affected filter.
Risk Assessment
Malicious script can be executed in the browsers of all site visitors, potentially leading to data theft, phishing, or malware distribution.
Recommendation
Update the YMC Filter plugin to version 3.12.8 or later, which includes the sanitization and ownership validation fix. Restrict access to layout builder settings to trusted users only.
Original NVD description (English source)
The YMC Filter WordPress plugin before 3.12.8 does not sanitize and escape a layout builder setting before outputting it on a public endpoint, and does not verify object ownership when the setting is saved, allowing users with the Contributor role and above to store JavaScript that executes in the browser of any visitor viewing an affected filter.