Cross-Site Scripting in extension "Apache Solr for TYPO3" (solr)

It has been discovered that the extension "Apache Solr for TYPO3" (solr) is susceptible to Cross-Site Scripting.

Release Date: March 03, 2016

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

Affected Versions: version 2.8.3 and below, 3.0.0 to 3.0.1

Vulnerability Type: Cross-Site Scripting

Severity: Low

Suggested CVSS v2.0: AV:N/AC:L/Au:N/C:N/I:P/A:N/E:F/RL:O/RC:C (What's that?)

Problem Description: The extension fails to properly sanitize user input. The vulnerability is exploitable only if the TypoScript setting search.keepExistingParametersForNewSearches is enabled (which is disabled by default).

Solution: Updated versions 2.8.4 and 3.0.2 are available from the TYPO3 Extension Manager and at and Users of the extension are advised to update the extension as soon as possible.

Credits: Credits go to Hendrik Nadler who discovered and reported 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.