CVE-2022-1001: WP Downgrade < 1.2.3 - Admin+ Stored Cross-Site Scripting

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-04-18 · updated 2026-06-17
Weakness: CWE-79

Description

The WP Downgrade WordPress plugin before 1.2.3 only perform client side validation of its "WordPress Target Version" settings, but does not sanitise and escape it server side, allowing high privilege users such as admin to perform Cross-Site attacks even when the unfiltered_html capability is disallowed

Affected products

WP Downgrade | Specific Core Version: before 1.2.3 — fixed in 1.2.3

How to fix

Upgrade to a fixed version: WP Downgrade | Specific Core Version 1.2.3. Check the vendor advisory for mitigations.

References

https://plugins.trac.wordpress.org/changeset/2696091
https://wpscan.com/vulnerability/34a7b3cd-e2b5-4891-ab33-af6a2a0eeceb
https://plugins.trac.wordpress.org/changeset/2696091
https://wpscan.com/vulnerability/34a7b3cd-e2b5-4891-ab33-af6a2a0eeceb

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