CVE-2026-42756— WordPress QuickWebP – Compress / Optimize Images & Convert WebP | SEO Friendly plugin <= 3.2.7 - Arbitrary File Deletion vulnerability
Quick assessment
Affected
Ludwig You QuickWebP – Compress / Optimize Images & Convert WebP | SEO Friendly
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin QuickWebP 3.2.7及之前版本存在路径遍历漏洞，该漏洞源于路径名限制不当，可能导致路径遍历攻击。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Ludwig You | QuickWebP – Compress / Optimize Images & Convert WebP | SEO Friendly | ≤ 3.2.7 |
affected |
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I. Basic Information for CVE-2026-42756
Vulnerability Information
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Vulnerability Title
WordPress QuickWebP – Compress / Optimize Images & Convert WebP | SEO Friendly plugin <= 3.2.7 - Arbitrary File Deletion vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin QuickWebP 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin QuickWebP 3.2.7及之前版本存在路径遍历漏洞，该漏洞源于路径名限制不当，可能导致路径遍历攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Ludwig You | QuickWebP – Compress / Optimize Images & Convert WebP | SEO Friendly | 0 ~ 3.2.7 | - |
|
II. Public POCs for CVE-2026-42756
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-42756 (1)
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V. Comments for CVE-2026-42756
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