MediumGHSA-qr5f-6fcv-w69q

Typo3 Security Misconfiguration in Frontend Session Handling

Published 5 Jun 2024 · Updated 2 Dec 2024

Affected packages

typo3/cmsComposer
Affected
>=8.0.0 <8.7.27
Fixed in
8.7.27
Update to the fixed version for your release line, for example:composer require typo3/cms:^8.7.27
typo3/cmsComposer
Affected
>=9.0.0 <9.5.8
Fixed in
9.5.8
Update to the fixed version for your release line, for example:composer require typo3/cms:^9.5.8

Details

It has been discovered session data of properly authenticated and logged in frontend users is kept and transformed into an anonymous user session during the logout process. This way the next user using the same client application gains access to previous session data.

Is GHSA-qr5f-6fcv-w69q 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, and gives you the command that fixes it.

References

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