High

404 to 301 <= 2.3.0 - Unauthenticated Stored Cross-Site Scripting

  • Disclosed: 27.08.2016
  • Updated: 11.10.2026 10:22

The 404 to 301 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Referer' and 'User-Agent' HTTP Headers in versions before 2.3.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected software

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PlatformPackageVulnerable versionsFixed in
WordPress plugin 404 to 301 – Redirect Manager, 301 Redirection, 404 Error Logs & 404 Monitoring <= 2.3.0 2.3.1

References

CVSS score 7.2/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Weakness (CWE)
CWE-79
Platform
WordPress
Package
404 to 301 – Redirect Manager, 301 Redirection, 404 Error Logs & 404 Monitoring
Disclosed
27.08.2016
Updated
11.10.2026 10:22

Sources and licenses

Wordfence Intelligence - 28624634-9161-4da7-89f3-88ce1d38c3ea - Wordfence Intelligence

Copyright 2012-2026 Defiant Inc.

This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/
Wordfence Intelligence
Wordfence Intelligence - Defiant, Inc.
Copyright Defiant, Inc. All rights reserved except as granted below.
License grant, section 3.1 of the Wordfence Intelligence Terms and Conditions (January 26, 2026):

Subject to this Agreement, Company hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute the Service. Any copy you make for such purposes is authorized provided that you reproduce Company’s copyright designation, this license, and the license of any disclosed Company licensor in any such copy.

Full applicable Agreement: https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/

Vulnerability history: 404 to 301 – Redirect Manager, 301 Redirection, 404 Error Logs & 404 Monitoring

All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
7
First → latest
08.2015 07.2023
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 1
  • High 2
  • Medium 4

Disclosures per year

  1. 2017: 0
  2. 2018: 0
  3. 2019: 1
  4. 2020: 0
  5. 2021: 2
  6. 2022: 1
  7. 2023: 1
  8. 2024: 0
  9. 2025: 0
  10. 2026: 0

earlier: 2

  1. Medium · 6.1 11177270-cc73-4c65-9f72-8c0a0a89bed5 <= 3.1.1 3.1.2
  2. Medium · 6.5 CVE-2021-24766 < 3.0.9 3.0.9
  3. Medium · 6.4 CVE-2021-4338 <= 3.0.7 3.0.8
  4. High · 8.8 3fda31fa-efc9-44b9-99ba-9e3e23aa2ee0 < 3.0.2 3.0.2
  5. 404 to 301 <= 2.3.0 - Unauthenticated Stored Cross-Site Scripting this entry
    High · 7.2 28624634-9161-4da7-89f3-88ce1d38c3ea <= 2.3.0 2.3.1

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