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TYPO3 allows remote authenticated backend users to unserialize arbitrary objects

Moderate severity GitHub Reviewed Published May 17, 2022 to the GitHub Advisory Database • Updated Apr 12, 2025

Package

composer typo3/cms (Composer)

Affected versions

>= 4.5.0, < 4.5.19
>= 4.6.0, < 4.6.12
>= 4.7.0, < 4.7.4

Patched versions

4.5.19
4.6.12
4.7.4

Description

view_help.php in the backend help system in TYPO3 4.5.x before 4.5.19, 4.6.x before 4.6.12 and 4.7.x before 4.7.4 allows remote authenticated backend users to unserialize arbitrary objects and possibly execute arbitrary PHP code via an unspecified parameter, related to a "missing signature (HMAC)."

References

Published by the National Vulnerability Database Sep 5, 2012
Published to the GitHub Advisory Database May 17, 2022
Reviewed Apr 12, 2025
Last updated Apr 12, 2025

Severity

Moderate

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(83rd percentile)

Weaknesses

CVE ID

CVE-2012-3527

GHSA ID

GHSA-m4hw-r893-xh4g

Source code

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