Event Espresso 4 Decaf <= 4.10.44.decaf - Feature Bypass

Improper Validation of Integrity Check Value
CVE CVE-2023-27437
CVSS 5.3 (Medium)
Publicly Published March 5, 2023
Last Updated January 22, 2024
Researcher yuyudhn


The Event Espresso 4 Decaf plugin for WordPress is vulnerable to bypass of a plugin feature in versions up to, and including, 4.10.44.decaf. This is due to incorrect validation of the number of tickets ordered per order when making a ticket purchase. This makes it possible for unauthenticated individuals to purchase more tickets than the maximum allowed per order.



1 affected software package

Software Type Plugin
Software Slug event-espresso-decaf (view on wordpress.org)
Patched? Yes
Remediation Update to version 4.10.45.decaf, or a newer patched version
Affected Version
  • <= 4.10.44.decaf
Patched Version
  • 4.10.45.decaf

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