CVE-2022-2448: reSmush.it Image Optimizer < 0.4.6 - Admin+ Cross-Site Scripting

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-10-10 · updated 2026-06-17
Weakness: CWE-79

Description

The reSmush.it WordPress plugin before 0.4.6 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when unfiltered_html is disallowed.

Affected products

reSmush.it : the only free Image Optimizer & compress plugin: before 0.4.6 — fixed in 0.4.6

How to fix

Upgrade to a fixed version: reSmush.it : the only free Image Optimizer & compress plugin 0.4.6. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/a4599942-2878-4da4-b55d-077775323b61
https://wpscan.com/vulnerability/a4599942-2878-4da4-b55d-077775323b61

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