Redirect 404 to parent < 1.3.1 - Reflected Cross-Site Scripting

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2021-24286
CVSS 6.1 (Medium)
Publicly Published April 23, 2021
Last Updated December 5, 2022
Researcher 0xB9


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



1 affected software package

Software Type Plugin
Software Slug redirect-404-to-parent (view on
Patched? Yes
Remediation Update to version 1.3.1, or a newer patched version
Affected Version
  • < 1.3.1
Patched Version
  • 1.3.1

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