Vulnerability Details CVE-2021-4404
The Event Espresso 4 Decaf plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 4.10.11. This is due to missing or incorrect nonce validation on the ajaxHandler() function. This makes it possible for unauthenticated attackers to op into notifications via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 36.4%
CVSS Severity
CVSS v3 Score 4.3
References
- https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/
- https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/
- https://plugins.trac.wordpress.org/changeset/2554360/event-espresso-decaf/trunk/core/domain/services/pue/Stats.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/89d3a9da-2496-4f75-ad8f-65629f198fe5?source=cve
- https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/
- https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/
- https://plugins.trac.wordpress.org/changeset/2554360/event-espresso-decaf/trunk/core/domain/services/pue/Stats.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/89d3a9da-2496-4f75-ad8f-65629f198fe5?source=cve
Products affected by CVE-2021-4404
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cpe:2.3:a:eventespresso:event_espresso_4_decaf:4.10.11