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GHSA-qr5f-6fcv-w69qmedium

Typo3 Security Misconfiguration in Frontend Session Handling

No CVE assignedCheck your stack

Impact

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.

Source excerpt · OSV

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

typo3/cms Packagist
Affected rangeRecorded fix
From 8.0.0 before 8.7.27Ecosystem versions8.7.27
From 9.0.0 before 9.5.8Ecosystem versions9.5.8

Version evidence: OSV · GHSA-qr5f-6fcv-w69q

View original version evidence (59 explicit versions)

Original source description

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.

References