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Vulnerabilities and Security Researches

Vulnerabilities and security researches forevent-espresso-decaf event-espresso-decaf

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Jan 28, 2026

Event Espresso 4 Decaf – Event Registration Event Ticketing # CVE-2025-68007

CVE, Research URL

CVE-2025-68007

Date
Jan 22, 2026
Research Description
Missing Authorization vulnerability in Event Espresso Event Espresso 4 Decaf event-espresso-decaf allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Event Espresso 4 Decaf: from n/a through <= 5.0.37.decaf.
Affected versions
max 5.0.37.
Status
vulnerable
Jan 03, 2025

Event Espresso 4 Decaf &#8211; Event Registration Event Ticketing # CVE-2024-56251

CVE, Research URL

CVE-2024-56251

Date
Jan 02, 2025
Research Description
Cross-Site Request Forgery (CSRF) vulnerability in Event Espresso Event Espresso 4 Decaf allows Cross Site Request Forgery.This issue affects Event Espresso 4 Decaf: from n/a through 5.0.28.decaf.
Affected versions
max 5.0.31.decaf.
Status
vulnerable
Aug 22, 2024

Event Espresso 4 Decaf &#8211; Event Registration Event Ticketing # CVE-2024-6883

CVE, Research URL

CVE-2024-6883

Date
Aug 21, 2024
Research 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, 5.0.22.decaf. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify some of the plugin settings.
Affected versions
max 5.0.22.decaf.
Status
vulnerable
Jun 07, 2024

Event Espresso 4 Decaf &#8211; Event Registration Event Ticketing # CVE-2021-4404

CVE, Research URL

CVE-2021-4404

Date
Jul 01, 2023
Research 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.
Affected versions
max 4.10.12.
Status
vulnerable

Event Espresso 4 Decaf &#8211; Event Registration Event Ticketing # 0d179fff144e451edfdd3cb96273a090f56f2585

Date
Aug 16, 2021
Research Description
Event Espresso &#8211; Event Registration &amp; Ticketing Sales [event-espresso-decaf] < 4.10.14 (closed) WordPress Event Espresso 4 Decaf plugin <= 4.10.12.decaf - Cross-Site Request Forgery (CSRF) vulnerability Cross-Site Request Forgery (CSRF) vulnerability discovered by Jerome Bruandet (NinTechNet) in WordPress Event Espresso 4 Decaf plugin (versions <= 4.10.12.decaf).
Affected versions
max 4.10.14.
Status
vulnerable

Event Espresso 4 Decaf &#8211; Event Registration Event Ticketing # CVE-2023-27437

CVE, Research URL

CVE-2023-27437

Date
Jun 04, 2024
Research Description
Missing Authorization vulnerability in Event Espresso Event Espresso 4 Decaf allows Functionality Misuse.This issue affects Event Espresso 4 Decaf: from n/a through 4.10.44.Decaf.
Affected versions
max 4.10.45.decaf.
Status
vulnerable

Event Espresso 4 Decaf &#8211; Event Registration Event Ticketing # CVE-2021-4342

CVE, Research URL

-

Date
Jun 07, 2023
Research Description
Rejected reason: CVE split into individual CVE IDs for each software record.
Affected versions
max 4.10.11.
Status
vulnerable