CVE-2021-24286: Redirect 404 to Parent < 1.3.1 - Reflected Cross-Site Scripting (XSS)

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 12.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-05-14 · updated 2026-06-17
Weakness: CWE-79

Description

The settings page of the Redirect 404 to parent WordPress plugin before 1.3.1 did not properly sanitise the tab parameter before outputting it back, leading to a reflected Cross-Site Scripting issue

Affected products

Moove Agency Redirect 404 to parent: before 1.3.1 — fixed in 1.3.1

How to fix

Upgrade to a fixed version: Moove Agency Redirect 404 to parent 1.3.1. Check the vendor advisory for mitigations.

References

http://packetstormsecurity.com/files/164328/WordPress-Redirect-404-To-Parent-1.3.0-Cross-Site-Scripting.html
https://wpscan.com/vulnerability/b9a535f3-cb0b-46fe-b345-da3462584e27
http://packetstormsecurity.com/files/164328/WordPress-Redirect-404-To-Parent-1.3.0-Cross-Site-Scripting.html
https://wpscan.com/vulnerability/b9a535f3-cb0b-46fe-b345-da3462584e27

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