WordPress security changelog
CRITICAL CVE-2026-42756 Deferred

QuickWebP – Compress / Optimize Images & Convert WebP | SEO Friendly: Filesystem traversal

QuickWebP – Compress / Optimize Images & Convert WebP | SEO Friendly is affected by filesystem traversal. Exposure depends on how the affected operation is made reachable by the site. A crafted path can escape the intended directory and reach files or directories elsewhere on the server. The published affected range is <= 3.2.7.

CVE / CNA score 9.9 CVSS 3.1 · audit@patchstack.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
QuickWebP – Compress / Optimize Images & Convert WebP | SEO Friendly
Plugin slug
quickwebp
Affected
<= 3.2.7
Safe version
3.2.8
Published
May 27, 2026
Weakness
CWE-22 — Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

This CVE was published May 27, 2026 and is one of 1 known issue for this plugin.

Update, patch or deactivate.

Update QuickWebP – Compress / Optimize Images & Convert WebP | SEO Friendly to 3.2.8 or later, or disable and remove it until a fixed version is available.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

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

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

Primary and upstream sources