Information Disclosure in "MMC directmail subscription" (mmc_directmail_subscription)

It has been discovered that the extension "MMC directmail subscription" (mmc_directmail_subscription) is susceptible to Information Disclosure.

Release Date: May 31, 2016

Component Type: Third party extension. This extension is not a part of the TYPO3 default installation.

Affected Versions: 0.9.6 and below

Vulnerability Type: Information Disclosure

Severity: Medium

Suggested CVSS v2.0: AV:N/AC:M/Au:N/C:P/I:N/A:N/E:F/RL:OF/RC:C

Problem Description: The extension discloses personal data of newsletter subscribers. Such data might be cached and indexed by search engines.

Solution: An updated version 0.9.7 is available from the TYPO3 Extension Manager and at Users of the extension are advised to update the extension as soon as possible.

Credits: Credits go to Loek Hilgersom who discovered the vulnerability.

General advice: Follow the recommendations that are given in the TYPO3 Security Guide. Please subscribe to the typo3-announce mailing list to receive future Security Bulletins via E-mail.