Path Traversal in Ludwig You Quickwebp – Compress / Optimize Images &Amp; Convert Webp | Seo Friendly

CVE-2026-42756

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 Qu…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.001 (16.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-42756?
CVE-2026-42756 is a critical-severity vulnerability in Ludwig You Quickwebp – Compress / Optimize Images &Amp; Convert Webp | Seo Friendly, classified under Path Traversal. CVSS score: 9.9/10. Published 2026-05-27.
How severe is CVE-2026-42756?
Critical severity. CVSS v3 base score is 9.9 out of 10.