Book a Room Event Calendar <= 1.9 - Cross-Site Request Forgery to Settings Update
| CVE | CVE-2026-9721 |
|---|---|
| CVSS | 4.3 (Medium) |
| Publicly Published | June 23, 2026 |
| Last Updated | June 24, 2026 |
| Researcher |
swat
|
Description
The Book a Room Event Calendar plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.9. This is due to missing or incorrect nonce validation on the settings_form()/update_settings() functionality. The plugin's options page handler dispatches on the 'action' POST parameter and calls update_settings(), which persists plugin configuration (including the external database host, username, password, prefix, database name, encryption key, and registration page URL) via update_option(), without ever generating a nonce field in the settings form or verifying one (no wp_nonce_field(), check_admin_referer(), or wp_verify_nonce() exists anywhere in the plugin). This makes it possible for unauthenticated attackers to modify the plugin's database connection settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
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Vulnerability Details for Book a Room Event Calendar
| Software Type | Plugin |
|---|---|
| Software Slug | book-a-room-event-calendar (view on wordpress.org) |
| Patched? | No |
| Remediation | No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement. |
| Affected Version |
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