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GHSA-8x3j-439w-537ccritical9.2

TYPO3 Remote Code Execution in extension "Content Element Selector" (ceselector)

Impact

The TYPO3 "Content Element Selector" (ceselector) extension passes an attacker-controlled cookie directly to PHP's unserialize() without safely processing the input. A remote, unauthenticated attacker can supply a crafted serialized payload to trigger PHP Object Injection, leading to Remote Code Execution on the TYPO3 server. Exploitation requires the content element to be configured with Persistent Mode: Static in the plugin settings. This has been patched in version 3.0.3, 4.0.2, 5.0.1, and 6.0.1.

Source excerpt · OSV
Applies when

Exploitation requires the content element to be configured with Persistent Mode: Static in the plugin settings.

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.

mmc/ceselector Packagist
Affected rangeRecorded fix
From 6.0.0 before 6.0.1Ecosystem versions6.0.1
From 5.0.0 before 5.0.1Ecosystem versions5.0.1
From 4.0.0 before 4.0.2Ecosystem versions4.0.2
Earlier releases before 3.0.3Ecosystem versions3.0.3

Version evidence: OSV · GHSA-8x3j-439w-537c

View original version evidence (12 explicit versions)

Original source description

The TYPO3 "Content Element Selector" (ceselector) extension passes an attacker-controlled cookie directly to PHP's unserialize() without safely processing the input. A remote, unauthenticated attacker can supply a crafted serialized payload to trigger PHP Object Injection, leading to Remote Code Execution on the TYPO3 server. Exploitation requires the content element to be configured with Persistent Mode: Static in the plugin settings. This has been patched in version 3.0.3, 4.0.2, 5.0.1, and 6.0.1.

References