Vulnerability · Published Nov 6, 2026 · Assigned by Patchstack
CVE-2026-120845WordPress Smush Image Compression and Optimization plugin <= 4.3.5 - Cross Site Scripting (XSS) vulnerability
Medium 6.5
In plain English
A medium-severity cross-site scripting in Smush Image Compression and Optimization from WPMU DEV. There are no confirmed reports of exploitation so far.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)–no EPSS score yet
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| WPMU DEV | Smush Image Compression and Optimization | 0 – through 4.3.5 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L