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.
This vulnerability is a high severity with CVSS 7.2 Stored Cross-Site Scripting issue affecting the Plugin 404 to 301 – Redirect Manager, 404 Error Logs & Notifications. It affects Versions up to 2.3.0 and is fixed in 2.3.1.
Use the related hub and response guides to connect this vulnerability report with patch validation, scanner checks, and site hardening work.
Open the grouped hub for related CVEs, affected ranges, severity mix, and patch coverage.
Check access, XML-RPC exposure, backup readiness, and monitoring after patching.
Use containment, evidence capture, remediation, and validation steps when exploit risk is high.
the tracked vulnerability is tracked for the Plugin 404 to 301 – Redirect Manager, 404 Error Logs & Notifications as high severity with CVSS 7.2. The affected range is Versions up to 2.3.0. Update 404 to 301 – Redirect Manager, 404 Error Logs & Notifications to 2.3.1 or newer where that version is compatible with the site.
Search engines and operators need more than a title. This page exposes the identifier, affected range, patch evidence, and source coverage that make the vulnerability actionable.
This report uses the upstream feed identifier because a CVE has not been attached to the record yet.
Affected version data gives operators a concrete comparison point against installed WordPress software.
A fixed version is present, so the page can answer update and remediation intent directly.
External references are available for source validation, advisory review, and incident notes.
Use these checks when converting this record into a patch ticket, incident note, or risk acceptance decision.
Inventory the installed Plugin package and compare its version with Versions up to 2.3.0.
Confirm 404 to 301 – Redirect Manager, 404 Error Logs & Notifications is updated to 2.3.1 or newer.
Review references and CVSS vector details for exploitability, authentication requirements, and exposure path.
After patching, re-run vulnerability monitoring and keep the related plugin or theme hub under review for follow-up CVEs.
| Software Type | Plugin |
|---|---|
| Software Slug |
404-to-301
View on wordpress.org
|
| CVE | No linked CVE entry. |
| Patched Versions |
2.3.1
|
| Affected Versions |
Versions up to 2.3.0
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
404 to 301 – Redirect, Log and Notify 404 Errors <= 2.0.2 - SQL Injection
404 to 301 <= 3.0.8 - Logs Deletion via Cross-Site Request Forgery
404 to 301 <= 3.0.7 - Missing Authorization to Redirect Creation
404 to 301 – Redirect, Log and Notify 404 Errors <= 3.1.1 - Reflected Cross-Site Scripting
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