VULNERABILITY INTELLIGENCE
CVE-2021-4404
CVSS score4.3 MEDIUM
EPSS probability0.39%
CISA KEVNot currently listed
Published2023-07-01
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
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.
Weakness classification
- security@wordfence.com: CWE-352
Primary references
- 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 — Not Applicable
- security@wordfence.com — Third Party Advisory
- security@wordfence.com — Patch
- security@wordfence.com — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Not Applicable
- af854a3a-2127-422b-91ae-364da2661108 — Not Applicable
- af854a3a-2127-422b-91ae-364da2661108 — Not Applicable