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Servers and applications

CVE-2021-21338

Open Redirection in Login Handling

Severity
Medium 6.1
Published
16 Mar 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
6.2.57, 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1
Also known as
GHSA-4jhw-2p6j-5wmp
Sources
NVD, Project advisories (GitHub)

Description

TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 6.2.57, 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 it has been discovered that Login Handling is susceptible to open redirection which allows attackers redirecting to arbitrary content, and conducting phishing attacks. No authentication is required in order to exploit this vulnerability. This is fixed in…

Affected software

SoftwareAffected versions
TYPO3Servers and applications · cpe:a:typo3:typo3
  • From 6.2.0 before 6.2.57
  • From 7.0.0 before 7.6.51
  • From 8.0.0 before 8.7.40
  • From 9.0.0 before 9.5.25
  • From 10.0.0 before 10.4.14
  • From 11.0.0 before 11.1.1
TYPO3Servers and applications · github:typo3/typo3
  • From 11.0.0 before 11.1.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-21338
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-21338
  • GitHub Advisory Database https://github.com/advisories/GHSA-4jhw-2p6j-5wmp
  • github.com https://github.com/TYPO3/typo3/security/advisories/GHSA-4jhw-2p6j-5wmp