How severe is CVE-2025-13750?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Mateuszgbiorczyk Converter For Media – Optimize Images | Convert Webp & Avif

CVE-2025-13750

The Converter for Media – Optimize images | Convert WebP & AVIF plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `/webp-converter/v1/regenerate-attachment` REST endpoint in all versions up to, and including, 6.3.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete optimized WebP/AVIF variants for arbitrary attachments.

Vulnerability class: Broken Access Control

EPSS: 0.002 (15.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Mateuszgbiorczyk Converter For Media – Optimize Images | Convert Webp & Avif — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

Frequently asked questions

What is CVE-2025-13750?: CVE-2025-13750 is a medium-severity vulnerability in Mateuszgbiorczyk Converter For Media – Optimize Images | Convert Webp & Avif, classified under Missing Authorization. CVSS score: 4.3/10. Published 2025-12-17.
How severe is CVE-2025-13750?: Medium severity. CVSS v3 base score is 4.3 out of 10.