Stored Cross-Site Scripting Vulnerability in Optimole Image Optimization Plugin for WordPress
CVE-2026-120677

7.2HIGH

Key Information:

Vendor

WordPress
Status
Optimole – Optimize Images | Convert Webp & Avif | Cdn & Lazy Load | Image Optimization
Vendor
CVE Published:
7 November 2026

What is CVE-2026-120677?

The Optimole plugin for WordPress is susceptible to Stored Cross-Site Scripting (XSS) through the 'comment' parameter. This vulnerability is attributed to inadequate input sanitization and output escaping, allowing potential attackers to execute malicious scripts within web pages. For successful exploitation, the malicious comment must receive approval from an administrator, and the page must contain at least one iframe or video element. This issue affects all plugin versions up to and including 4.2.18, and exploitation is particularly feasible when default settings for video lazy loading are utilized.

Affected Version(s)

Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization 0 <= 4.2.18

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/optimole-wp/ta...
https://plugins.trac.wordpress.org/browser/optimole-wp/ta...

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kohav
.