CVE-2026-91072— EWWW Image Optimizer < 8.8.0 - Admin+ WebP File Rename and Deletion via Unrestricted Path in WebP Migration Handler
Quick assessment
Affected
Unknown EWWW Image Optimizer
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.
EWWW Image Optimizer WordPress 插件在 8.8.0 版本之前，未将 WebP 衍生文件的迁移流程限制在当前站点自身的上传目录内。这使得拥有管理员权限的攻击者能够重命名或删除该范围之外的现有 WebP 衍生图像文件，包括在多站点网络中属于其他站点且攻击者无权访问的文件。
Possible ATT&CK Techniques 1 AI
T1098 · Account Manipulation
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I. Basic Information for CVE-2026-91072
Vulnerability Information
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Vulnerability Title
EWWW Image Optimizer < 8.8.0 - Admin+ WebP File Rename and Deletion via Unrestricted Path in WebP Migration Handler
Source: CVE Program / CVE List V5
Vulnerability Description
The EWWW Image Optimizer WordPress plugin before 8.8.0 does not confine a WebP-derivative file migration routine to the current site's own uploads directory, letting an attacker with Administrator-level access rename or delete existing WebP-derivative image files outside that scope, including, on a multisite network, files belonging to a different site they have no access to.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Unknown | EWWW Image Optimizer | 0 ~ 8.8.0 | - |
|
II. Public POCs for CVE-2026-91072
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-91072 (1)
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https://wpscan.com/vulnerability/c77770c5-d1af-47f6-9aee-a50d4a919732/ exploit vdb-entry technical-description
Same Patch Batch · Unknown · 2026-09-30 · 28 CVEs total
| CVE-2026-88797 | Vayu X < 1.0.6 - Subscriber+ Arbitrary WordPress.org Plugin Installation and Activation | |
| CVE-2026-100143 | FluentCart < 1.6.5 - Unauthenticated Guest Customer Account Takeover via Checkout Email | |
| CVE-2026-75824 | WP User Frontend 2.5.8 - 4.3.11 - Unauthenticated Account Creation with Registration Disab | |
| CVE-2026-75823 | WP User Frontend 3.5.29 - 4.3.11 - Unauthenticated Privilege Escalation via Registration R | |
| CVE-2026-82127 | Schema & Structured Data for WP & AMP < 1.67 - Editor+ Stored XSS via Taxonomy Term Fields | |
| CVE-2026-80333 | Solace Extra < 1.7.2 - Unauthenticated Non-Published Post Content Disclosure via Preview R | |
| CVE-2026-83560 | New User Approve 3.1.0 - 3.2.9 - Unauthenticated PII Disclosure via Zapier API Key Bypass | |
| CVE-2026-75873 | Zella Theme < 2.6.3 - Unauthenticated Arbitrary File Upload | |
| CVE-2026-86789 | Connections Business Directory <= 10.4.67 - Unauthenticated Non-Public Directory Entry Dis | |
| CVE-2026-85001 | EmbedPress 4.4.9 - 4.6.6 - Contributor+ Stored XSS via Elementor Widget showTitle Attribut | |
| CVE-2026-85415 | Audio Player Block 1.1.0 - 1.6.2 - Contributor+ Stored XSS via Audio Download URL | |
| CVE-2026-85576 | All in One Files Upload for WooCommerce < 2.0.17 - Subscriber+ Arbitrary Plugin Settings U | |
| CVE-2026-85573 | All in One Files Upload for WooCommerce 2.0.3 - 2.0.16 - Unauthenticated Stored XSS via SV | |
| CVE-2026-88791 | Safe Redirect Manager < 2.3.0 - Open Redirect via Wildcard Redirect Rules | |
| CVE-2026-94274 | YayReviews 1.0.4 - 1.4.0 - Unauthenticated Sensitive Data Disclosure via REST API | |
| CVE-2026-87777 | Hostinger Reach 1.0.6 - 1.8.2 - Contributor+ Stored XSS via formId Elementor Widget Attrib | |
| CVE-2026-89193 | Robin Image Optimizer 2.0.0 - 2.0.7 - Unauthenticated Stored XSS via WebP URL Delivery HTM | |
| CVE-2026-89190 | Robin Image Optimizer < 2.0.8 - Subscriber+ Plugin Settings Disclosure via fy_ajax | |
| CVE-2026-90953 | Image Optimizer by Elementor < 1.7.7 - Subscriber+ Attachment Metadata and Site Statistics | |
| CVE-2026-91051 | EWWW Image Optimizer 8.6.0 - 8.7.7 - Author+ PHP Object Injection via 'eio_page_settings' |
Showing top 20 of 28 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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