CVE-2026-16558
Medium
Description
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.
SeverityMedium
CVSS5.4
Exploit probability—
ProductYMC Filter
PublishedAug 8, 2026
First seenAug 8, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- YMC Filter3.12.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| YMC Filter | 3.6.0 ≤ v < 3.12.8 | 3.12.8 |
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