CVE-2026-42756 CRITICAL

CVE-2026-42756: WordPress QuickWebP – Compress / Optimize Images & Convert WebP | SEO Friendly plugin <= 3.2.7 - Arbitrary File Deletion vulnerability

Vendor Ludwig You
Product QuickWebP &#8211; Compress / Optimize Images &amp; Convert WebP | SEO Friendly
Weakness CWE-22 · Path traversal
Published May 27, 2026
Last update May 27, 2026
View on NVD All CVEs

CVSS base score

9.9/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

Description

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Ludwig You QuickWebP &#8211; Compress / Optimize Images &amp; Convert WebP | SEO Friendly quickwebp allows Path Traversal.This issue affects QuickWebP &#8211; Compress / Optimize Images &amp; Convert WebP | SEO Friendly: from n/a through <= 3.2.7.

Key dates

Disclosure timeline

May 27, 2026 CVE published
May 27, 2026 Record updated