What is CVE-2026-16559?

CVE-2026-16559 is a medium-severity vulnerability in Ymc Filter, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-08-08.

How severe is CVE-2026-16559?

Medium severity. CVSS v3 base score is 6.8 out of 10.

XSS in Ymc Filter

CVE-2026-16559

The YMC Filter WordPress plugin before 3.12.9 does not sanitize SVG files uploaded through one of its icon upload features and permits their upload by low-privileged users, allowing users with the Author role and above to upload a file containing JavaScript that executes in the site's origin when the file is viewed.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (13.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H.

Affected products

Unknown Ymc Filter — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-16559?: CVE-2026-16559 is a medium-severity vulnerability in Ymc Filter, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-08-08.
How severe is CVE-2026-16559?: Medium severity. CVSS v3 base score is 6.8 out of 10.