Upcoming for Calendly <= 1.2.4 - Cross-Site Request Forgery to Settings Update
Vulnerability Description
The Upcoming for Calendly plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.2.4. This is due to missing nonce validation on the settings update functionality. This makes it possible for unauthenticated attackers to update the plugin's Calendly API key via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Muhammad Nur Ibnu Hubab
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d66d6f36-ad16-40ba-b32f-f4aff6f8b494?source=cve
- https://plugins.trac.wordpress.org/browser/upcoming-for-calendly/trunk/includes/settings.php#L33
- https://plugins.trac.wordpress.org/browser/upcoming-for-calendly/tags/1.2.4/includes/settings.php#L33
- https://wordpress.org/plugins/upcoming-for-calendly/#developers
- https://plugins.trac.wordpress.org/changeset/3415892/
Affected Vendor
justdave
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