Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Eventespresso | Event Espresso 4 Decaf | <= 4.10.11 |
Related Weaknesses (CWE)
References
- https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/Not Applicable
- https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrfNot Applicable
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieNot Applicable
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieNot Applicable
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieNot Applicable
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieNot Applicable
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieThird Party Advisory
- https://plugins.trac.wordpress.org/changeset/2554360/event-espresso-decaf/trunk/Patch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/89d3a9da-2496-4f75-ad8Third Party Advisory
- https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/Not Applicable
- https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrfNot Applicable
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieNot Applicable
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieNot Applicable
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieNot Applicable
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilitieNot Applicable
FAQ
What is CVE-2021-4404?
CVE-2021-4404 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 ajaxH...
How severe is CVE-2021-4404?
CVE-2021-4404 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-4404?
Check the references section above for vendor advisories and patch information. Affected products include: Eventespresso Event Espresso 4 Decaf.