What’s Vulnerable › Vulnerabilities

CVE-2024-6883: Event Espresso 4 Decaf – Event Registration Event Ticketing <= 4.10.46.decaf- Authenticated (Subscriber+) Missing Authorization to Limited Plugin Settings Modification

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-08-21 · updated 2026-06-17
• Weakness: CWE-862

Description

The Event Espresso 4 Decaf – Event Registration Event Ticketing plugin for WordPress is vulnerable to limited unauthorized plugin settings modification due to a missing capability check on the saveTimezoneString and some other functions in all versions up to and including 4.10.46.decaf. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify some of the plugin settings.

Affected products

• Event Espresso Event Expresso Free: before 5.0.22 — fixed in 5.0.22

How to fix

Upgrade to a fixed version: Event Espresso Event Expresso Free 5.0.22. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/browser/event-espresso-decaf/tags/4.10.46.decaf/admin_pages/events/Events_Admin_Page.core.php#L2800
• https://www.wordfence.com/threat-intel/vulnerabilities/id/689abb68-0c19-4f89-91db-fd15ab8bca8e?source=cve

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