Open Redirect Affecting typo3/cms package, versions >=11.0.0, <11.1.1 >=10.0.0, <10.4.14 <9.5.25
Snyk CVSS
Attack Complexity
Low
User Interaction
Required
Threat Intelligence
EPSS
0.08% (34th
percentile)
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Test your applications- Snyk ID SNYK-PHP-TYPO3CMS-1086559
- published 18 Mar 2021
- disclosed 17 Mar 2021
- credit Alexander Kellner, Bayerische Staatsbibliothek
Introduced: 17 Mar 2021
CVE-2021-21338 Open this link in a new tabHow to fix?
Upgrade typo3/cms
to version 11.1.1, 10.4.14, 9.5.25 or higher.
Overview
typo3/cms is a free open source Content Management Framework.
Affected versions of this package are vulnerable to Open Redirect via Login Handling
. This allows attackers to redirect to arbitrary content, and conduct phishing attacks. This is caused due to a missing check in GeneralUtility::sanitizeLocalUrl()
, which resulted in any URL starting with //
to be considered as a local URL.