Cross-Site Scripting Vulnerability in EWWW Image Optimizer by Exactly WWW LLC
CVE-2026-124254

7.1HIGH

Key Information:

Vendor

WordPress
Status
Ewww Image Optimizer
Vendor
CVE Published:
15 November 2026

What is CVE-2026-124254?

The EWWW Image Optimizer plugin for WordPress suffers from a Cross-Site Scripting (XSS) vulnerability due to improper neutralization of user input during web page generation. This security flaw allows attackers to inject malicious scripts that can be stored and executed in the context of trusted users, posing a significant risk to website integrity and user data. The vulnerability affects all versions of the EWWW Image Optimizer plugin up to and including version 8.9.1. Webmasters should take immediate action to mitigate the risks associated with this vulnerability.

Affected Version(s)

EWWW Image Optimizer 0 <= 8.9.1

References

https://patchstack.com/database/wordpress/plugin/ewww-ima...
vdb-entry

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

AndrewN | Patchstack Bug Bounty Program
.