WP 404 Auto Redirect to Similar Post <= 1.0.3 - Authenticated (Administrator+) Stored Cross-Site Scripting

7.2
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2023-40206
CVSS 7.2 (High)
Publicly Published August 11, 2023
Last Updated January 22, 2024
Researcher Taihei Shimamine

Description

The WP 404 Auto Redirect to Similar Post plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in versions up to, and including, 1.0.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only impacts multi-site installations and installations where unfiltered_html has been disabled.

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1 affected software package

Software Type Plugin
Software Slug wp-404-auto-redirect-to-similar-post (view on wordpress.org)
Patched? No
Remediation No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
Affected Version
  • <= 1.0.3

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