CSRF in Eventespresso Event Espresso 4 Decaf
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.
Vulnerability class: CSRF (Cross-Site Request Forgery)
EPSS: 0.004 (31.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@wordfence.com (Third Party Advisory)
- security@wordfence.com (Not Applicable)
- security@wordfence.com (Not Applicable)
- security@wordfence.com (Not Applicable)
- security@wordfence.com (Not Applicable)
- security@wordfence.com (Not Applicable)
- security@wordfence.com (Third Party Advisory)
- security@wordfence.com (Not Applicable)
- security@wordfence.com (Patch)
Frequently asked questions
- What is CVE-2021-4404?
- CVE-2021-4404 is a medium-severity vulnerability in Eventespresso Event Espresso 4 Decaf, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2023-07-01.
- How severe is CVE-2021-4404?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2021-4404 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.