CVE-2026-42756 PUBLISHED

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

Assigner: Patchstack
Reserved: 29.04.2026 Published: 27.05.2026 Updated: 27.05.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 9.9

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	Ludwig You
Product	QuickWebP – Compress / Optimize Images & Convert WebP \| SEO Friendly
Versions	Default: unaffected affected from 0 to 3.2.7 (incl.)

Credits

dodoh4t | Patchstack Bug Bounty Program finder

References

https://patchstack.com/database/Wordpress/Plugin/quickwebp/vulnerability/wordpress-quickwebp-compress-optimize-images-convert-webp-seo-friendly-plugin-3-2-7-arbitrary-file-deletion-vulnerability?_s_id=cve

Problem Types

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE

Impacts

Path Traversal