CVE-2026-124254
Deferred Deferred - Pending Action

Stored XSS in EWWW Image Optimizer Plugin

Publication date: 2026-11-15

Last updated on: 2026-11-15

Assigner: Patchstack

Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Exactly WWW LLC EWWW Image Optimizer ewww-image-optimizer allows Stored XSS.This issue affects EWWW Image Optimizer: from n/a through 8.9.1.

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Meta Information

Published
2026-11-15
Last Modified
2026-11-15
Generated
2026-11-15
AI Q&A
2026-11-15
EPSS Evaluated
N/A
NVD
CVE-2026-124254
EUVD
EUVD-2026-126050

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
exactly_www_llc ewww_image_optimizer to 8.9.1 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This is a Stored Cross-Site Scripting (XSS) vulnerability in the EWWW Image Optimizer plugin by Exactly WWW LLC. It allows attackers to inject malicious scripts into web pages that are stored on the server and executed when other users view those pages.

Detection Guidance

To detect this Stored XSS vulnerability in EWWW Image Optimizer, inspect web application logs for suspicious input patterns in image metadata or filenames. Check for unusual JavaScript code in stored image titles, descriptions, or alt text fields. Manually review user-uploaded images for embedded scripts in EXIF data or file names. Use browser developer tools to monitor network requests for unexpected script execution during page loads.

Impact Analysis

An attacker could steal user sessions, deface websites, or perform actions on behalf of users. Users visiting infected pages may have their data compromised or be redirected to malicious sites without their knowledge.

Compliance Impact

This vulnerability could lead to unauthorized access to personal data, violating GDPR and HIPAA requirements for data protection and confidentiality. Organizations may face fines or legal consequences if exploited.

Mitigation Strategies

Update EWWW Image Optimizer to the latest version to patch the vulnerability. Disable the plugin temporarily if an update is not immediately available. Monitor network traffic for suspicious activity and review stored user inputs for malicious scripts.

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