Vulnerability advisory

GHSA-347x-877p-hcwx

Information Disclosure in Password Reset

Published May 13, 2020Updated Sep 10, 2026OSV record ↗

Also known as BIT-typo3-2020-11063CVE-2020-11063

Severity

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

Affected versions

typo3/cms-core Packagist

All typo3/cms-core advisories →

Affected	Fixed in
`10.0.0` to before 10.4.2	`10.4.2`Advisories →
Also listed as affected (8) `v10.0.0` `v10.1.0` `v10.2.0` `v10.2.1` `v10.2.2` `v10.3.0` `v10.4.0` `v10.4.1`

typo3/cms Packagist

All typo3/cms advisories →

Affected	Fixed in
`10.0.0` to before 10.4.2	`10.4.2`Advisories →
Also listed as affected (8) `v10.0.0` `v10.1.0` `v10.2.0` `v10.2.1` `v10.2.2` `v10.3.0` `v10.4.0` `v10.4.1`

Description

In TYPO3 CMS 10.4.0 through 10.4.1, it has been discovered that time-based attacks can be used with the password reset functionality for backend users. This allows an attacker to mount user enumeration based on email addresses assigned to backend user accounts.

This has been fixed in 10.4.2.

References

https://typo3.org/security/advisory/typo3-core-sa-2020-001