CVE-2026-13359
Deferred Deferred - Pending Action

Stored XSS in Contact Form to DB WordPress Plugin

Publication date: 2026-09-09

Last updated on: 2026-09-09

Assigner: Wordfence

Description
The Contact Form to DB by BestWebSoft – Messages Database Plugin For WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via cntctfrm_contact_dropdown Parameter in all versions up to, and including, 1.7.5 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. The injected payload executes in the context of an administrator's browser session when they visit the plugin's message manager page at /wp-admin/admin.php?page=cntctfrmtdb_manager, making it possible to compromise administrator-level sessions via a simple unauthenticated contact form submission.

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Meta Information

Published
2026-09-09
Last Modified
2026-09-09
Generated
2026-09-29
AI Q&A
2026-09-09
EPSS Evaluated
2026-09-27
NVD
CVE-2026-13359
EUVD
EUVD-2026-74566

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
bestwebsoft contact_form_to_db to 1.7.5 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This vulnerability is a Stored Cross-Site Scripting (XSS) flaw in the Contact Form to DB by BestWebSoft WordPress plugin. It allows unauthenticated attackers to inject malicious scripts via the cntctfrm_contact_dropdown parameter due to poor input sanitization and output escaping. The injected scripts execute when an administrator views the plugin's message manager page.

Detection Guidance

Check WordPress installations for the Contact Form to DB plugin versions up to 1.7.5. Inspect network traffic for unauthenticated POST requests to /wp-admin/admin-ajax.php with cntctfrm_contact_dropdown parameter containing suspicious scripts. Review plugin message manager logs at /wp-admin/admin.php?page=cntctfrmtdb_manager for unexpected entries.

Impact Analysis

An attacker could steal administrator session cookies, perform actions on your behalf, or take over your WordPress site. Since the payload executes in an admin's browser, it may lead to full site compromise without requiring authentication.

Compliance Impact

This vulnerability could lead to unauthorized access to personal data, violating GDPR and HIPAA requirements for data protection and access controls. A successful exploit may result in data breaches, triggering compliance violations and potential fines.

Mitigation Strategies

Update the Contact Form to DB plugin to the latest version. If an update is unavailable, disable or remove the plugin immediately. Implement input validation for all form submissions and enable strict output escaping in WordPress configurations.

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