LowGHSA-347x-877p-hcwxBIT-typo3-2020-11063CVE-2020-11063

Information Disclosure in Password Reset

Published 13 May 2020 · Updated 10 Sept 2026

Affected packages

Affected
>=10.0.0 <10.4.2
Fixed in
10.4.2
Update to the fixed version for your release line, for example:composer require typo3/cms-core:^10.4.2
typo3/cmsComposer
Affected
>=10.0.0 <10.4.2
Fixed in
10.4.2
Update to the fixed version for your release line, for example:composer require typo3/cms:^10.4.2

Details

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

Is GHSA-347x-877p-hcwx in any of your client repos?

Checking one package by hand is fine. Checking it across forty client projects is not. NPMscan reads the lockfiles in every GitHub repo you pick, finds each project with an affected typo3/cms-core, and gives you the command that fixes it.

References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.