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TYPO3-EXT-SA-2020-017: Multiple vulnerabilities in extension "Event management and registration" (sf_event_mgt)

Categories: Development, Security Created by Torben Hansen
It has been discovered that the extension "Event management and registration" (sf_event_mgt) is susceptible to Information Disclosure and Broken Access Control.
  • Release Date: September 02, 2020
  • Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.
  • Component: Event management and registration (sf_event_mgt)
  • Vulnerability Type: Information Disclosure, Broken Access Control
  • Affected Versions: 4.3.0 and below, 5.0.0 - 5.1.0
  • Severity: Medium
  • Suggested CVSS v3.1: AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:F/RL:O/RC:C
  • References: CVE-2020-25026

Problem Description

A missing access check in the backend module allows an authenticated backend user to export participant data for events which the user does not have access to, resulting in Information Disclosure.

Another missing access check in the backend module allows an authenticated backend user to send emails to event participants for events which the user does not have access to, resulting in Broken Access Control.

Solution

Updated versions 4.3.1 and 5.1.1 are available from the TYPO3 extension manager, Packagist and at
https://extensions.typo3.org/extension/download/sf_event_mgt/4.3.1/zip/
https://extensions.typo3.org/extension/download/sf_event_mgt/5.1.1/zip/
Users of the extension are advised to update the extension as soon as possible.

Credits

Thanks to TYPO3 security team member Torben Hansen for providing an updated version of the extension.

General Advice

Follow the recommendations that are given in the TYPO3 Security Guide. Please subscribe to the typo3-announce mailing list.