Medium · 6.5 CVE-2026-120845 EUVD-2026-118529GHSA-f738-cw88-chq3

WordPress Smush Image Compression and Optimization plugin <= 4.3.5 - Cross Site Scripting (XSS) vulnerability

Published Nov 6, 2026 · Updated Nov 7, 2026 · Assigned by Patchstack

Vendor: WPMU DEV Product: Smush Image Compression and Optimization

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WPMU DEV Smush Image Compression and Optimization wp-smushit allows Stored XSS.This issue affects Smush Image Compression and Optimization: from n/a through 4.3.5.

Affected products

Vendor	Product	Affected	Fixed
WPMU DEV	Smush Image Compression and Optimization	≤ 4.3.5	—

References

https://patchstack.com/database/wordpress/plugin/wp-smushit/vulnerability/wordpress-smush-image-compression-and-optimization-plugin-4-3-5-cross-site-scripting-xss-vulnerability?_s_id=cve vdb-entry