CVE-2025-13750

MEDIUM
Published Dec 17, 2025 Modified Apr 15, 2026 CWE-862

Description

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.

CVSS v3.1 Score

4.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Weakness Type (CWE)

CWE-862 Missing Authorization

References

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 4.3 (MEDIUM).
How severe is CVE-2025-13750? +
CVE-2025-13750 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
How do I check if I'm vulnerable to CVE-2025-13750? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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