CVE-2026-16558
YMC Filter < 3.12.8 - Contributor+ Stored XSS via Layout Builder Schema
- State
- Published
- Severity
- 5.4 Medium
- Published
- Aug 8, 2026
- Updated
- Aug 10, 2026
- Reserved
- Jul 22, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N | CISA-ADP |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
YMC FilterUnknown |
|
References
- https://wpscan.com/vulnerability/06ba0551-deab-41fb-b501-eef0727b431a/exploitvdb-entrytechnical-description
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