CVE-2026-13359: Contact Form to DB by BestWebSoft <= 1.7.5 - Unauthenticated Stored Cross-Site Scripting via cntctfrm_contact_dropdown Parameter
The Contact Form to DB by BestWebSoft – Messages Database Plugin For WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via cntctfrmcontactdropdown 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=cntctfrmtdbmanager, making it possible to compromise administrator-level sessions via a simple unauthenticated contact form submission.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue, and what interaction is required?
An unauthenticated attacker can submit a contact form containing a malicious value in the cntctfrm_contact_dropdown parameter. Exploitation does not require authentication or user interaction from the attacker, but an administrator must later open the plugin's message manager page for the payload to run.
Which systems are affected?
WordPress sites using Contact Form to DB by BestWebSoft – Messages Database Plugin for WordPress are affected in all versions up to and including 1.7.5. The vulnerable functionality is the contact form submission and message manager workflow.
What is the likely impact if exploitation succeeds?
The injected script executes in the context of an administrator's browser session when the administrator visits /wp-admin/admin.php?page=cntctfrmtdb_manager. This can enable compromise of administrator-level sessions and allows disclosure or modification of data available to that session.