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GHSA-jg55-3q6h-2ccfmedium

Typo3 Backend XSS Vulnerability

Impact

An Information Disclosure vulnerability in jumpUrl mechanism, used to track access on web pages and provided files, allows a remote attacker to read arbitrary files on a host.

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 3.3.0; no upper bound recordedVersionsNot recorded
From 4.0 before 4.0.12Ecosystem versions4.0.12
From 4.1.0 before 4.1.10Ecosystem versions4.1.10
From 4.2.0 before 4.2.6Ecosystem versions4.2.6

Version evidence: OSV · GHSA-jg55-3q6h-2ccf

View original version evidence (371 explicit versions)

Original source description

An Information Disclosure vulnerability in jumpUrl mechanism, used to track access on web pages and provided files, allows a remote attacker to read arbitrary files on a host.

The expected value of a mandatory hash secret, intended to invalidate such requests, is exposed to remote users allowing them to bypass access control by providing the correct value.

There's no authentication required to exploit this vulnerability. The vulnerability allows to read any file, the web server user account has access to.

References