Vulnerability advisory

GHSA-4jhw-2p6j-5wmp

Open Redirection in Login Handling

Published Mar 23, 2021Updated Jul 8, 2026OSV record ↗

Also known as BIT-typo3-2021-21338CVE-2021-21338

Severity

CVSS 3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected versions

typo3/cms-core Packagist

All typo3/cms-core advisories →

Affected	Fixed in
`6.2.0` to before 6.2.57	`6.2.57`Advisories →
`7.0.0` to before 7.6.51	`7.6.51`Advisories →
`8.0.0` to before 8.7.40	`8.7.40`Advisories →
Also listed as affected (26) `v8.7.10` `v8.7.11` `v8.7.12` `v8.7.13` `v8.7.14` `v8.7.15` `v8.7.16` `v8.7.17` `v8.7.18` `v8.7.19` `v8.7.20` `v8.7.21` `v8.7.22` `v8.7.23` `v8.7.24` `v8.7.25` `v8.7.26` `v8.7.27` `v8.7.28` `v8.7.29` `v8.7.30` `v8.7.31` `v8.7.32` `v8.7.7` `v8.7.8` `v8.7.9`
`10.0.0` to before 10.4.14	`10.4.14`Advisories →
Also listed as affected (20) `v10.0.0` `v10.1.0` `v10.2.0` `v10.2.1` `v10.2.2` `v10.3.0` `v10.4.0` `v10.4.1` `v10.4.10` `v10.4.11` `v10.4.12` `v10.4.13` `v10.4.2` `v10.4.3` `v10.4.4` `v10.4.5` `v10.4.6` `v10.4.7` `v10.4.8` `v10.4.9`
`11.0.0` to before 11.1.1	`11.1.1`Advisories →
Also listed as affected (2) `v11.0.0` `v11.1.0`
`9.0.0` to before 9.5.25	`9.5.25`Advisories →
Also listed as affected (34) `v9.0.0` `v9.1.0` `v9.2.0` `v9.2.1` `v9.3.0` `v9.3.1` `v9.3.2` `v9.3.3` `v9.4.0` `v9.5.0` `v9.5.1` `v9.5.10` `v9.5.11` `v9.5.12` `v9.5.13` `v9.5.14` `v9.5.15` `v9.5.16` `v9.5.17` `v9.5.18` `v9.5.19` `v9.5.2` `v9.5.20` `v9.5.21` `v9.5.22` `v9.5.23` `v9.5.24` `v9.5.3` `v9.5.4` `v9.5.5` `v9.5.6` `v9.5.7` `v9.5.8` `v9.5.9`

typo3/cms Packagist

All typo3/cms advisories →

Affected	Fixed in
`10.0.0` to before 10.4.14	`10.4.14`Advisories →
Also listed as affected (20) `v10.0.0` `v10.1.0` `v10.2.0` `v10.2.1` `v10.2.2` `v10.3.0` `v10.4.0` `v10.4.1` `v10.4.10` `v10.4.11` `v10.4.12` `v10.4.13` `v10.4.2` `v10.4.3` `v10.4.4` `v10.4.5` `v10.4.6` `v10.4.7` `v10.4.8` `v10.4.9`
`11.0.0` to before 11.1.1	`11.1.1`Advisories →
Also listed as affected (2) `v11.0.0` `v11.1.0`
`9.0.0` to before 9.5.25	`9.5.25`Advisories →
Also listed as affected (34) `v9.0.0` `v9.1.0` `v9.2.0` `v9.2.1` `v9.3.0` `v9.3.1` `v9.3.2` `v9.3.3` `v9.4.0` `v9.5.0` `v9.5.1` `v9.5.10` `v9.5.11` `v9.5.12` `v9.5.13` `v9.5.14` `v9.5.15` `v9.5.16` `v9.5.17` `v9.5.18` `v9.5.19` `v9.5.2` `v9.5.20` `v9.5.21` `v9.5.22` `v9.5.23` `v9.5.24` `v9.5.3` `v9.5.4` `v9.5.5` `v9.5.6` `v9.5.7` `v9.5.8` `v9.5.9`

Description

Problem

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.

Solution

Update to TYPO3 versions 6.2.57, 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 that fix the problem described.

Credits

Thanks to Alexander Kellner who reported this issue and to TYPO3 security team member Torben Hansen who fixed the issue.

References

TYPO3-CORE-SA-2021-001