CVE-2025-12037: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in hwk-fr WP 404 Auto Redirect to Similar Post
The WP 404 Auto Redirect to Similar Post plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.0.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
AI Analysis
Technical Summary
CVE-2025-12037 is a stored cross-site scripting vulnerability in the WP 404 Auto Redirect to Similar Post plugin for WordPress, present in all versions up to 1.0.5. The issue stems from improper neutralization of input during web page generation, allowing authenticated administrators to inject arbitrary scripts via plugin admin settings. The vulnerability affects multi-site WordPress setups or installations where unfiltered_html is disabled, enabling script execution upon page access. The CVSS 3.1 vector (AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N) reflects network attack vector, high attack complexity, required high privileges, no user interaction, scope change, and limited confidentiality and integrity impact.
Potential Impact
An attacker with administrator-level privileges can inject persistent malicious scripts into pages generated by the plugin. These scripts execute in the context of users visiting the affected pages, potentially leading to limited confidentiality and integrity impacts such as session hijacking or unauthorized actions. The vulnerability does not affect availability and requires high privileges and complex attack conditions, limiting its exploitation scope.
Mitigation Recommendations
No official patch or fix is currently available for this vulnerability. Users should monitor the vendor's advisory for updates. Until a fix is released, restrict administrator access to trusted users only and consider disabling or replacing the plugin in multi-site environments or where unfiltered_html is disabled to reduce risk.
CVE-2025-12037: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in hwk-fr WP 404 Auto Redirect to Similar Post
Description
The WP 404 Auto Redirect to Similar Post plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 1.0.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-12037 is a stored cross-site scripting vulnerability in the WP 404 Auto Redirect to Similar Post plugin for WordPress, present in all versions up to 1.0.5. The issue stems from improper neutralization of input during web page generation, allowing authenticated administrators to inject arbitrary scripts via plugin admin settings. The vulnerability affects multi-site WordPress setups or installations where unfiltered_html is disabled, enabling script execution upon page access. The CVSS 3.1 vector (AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N) reflects network attack vector, high attack complexity, required high privileges, no user interaction, scope change, and limited confidentiality and integrity impact.
Potential Impact
An attacker with administrator-level privileges can inject persistent malicious scripts into pages generated by the plugin. These scripts execute in the context of users visiting the affected pages, potentially leading to limited confidentiality and integrity impacts such as session hijacking or unauthorized actions. The vulnerability does not affect availability and requires high privileges and complex attack conditions, limiting its exploitation scope.
Mitigation Recommendations
No official patch or fix is currently available for this vulnerability. Users should monitor the vendor's advisory for updates. Until a fix is released, restrict administrator access to trusted users only and consider disabling or replacing the plugin in multi-site environments or where unfiltered_html is disabled to reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2025-10-21T17:49:17.129Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6995477080d747be203eb7d5
Added to database: 2/18/2026, 5:00:32 AM
Last enriched: 4/9/2026, 9:14:20 AM
Last updated: 5/22/2026, 4:55:36 PM
Views: 87
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