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| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| typo3/cms | composer | >= 8.0.0, < 8.7.30 | 8.7.30 |
| typo3/cms | composer | >= 9.0.0, < 9.5.12 | 9.5.12 |
The vulnerability stems from insecure use of unserialize() in Extbase's request handling. The patches explicitly add 'allowed_classes' => false to these calls, indicating they were previously vulnerable to object injection. The functions process user-controlled data (after HMAC validation), and without class restrictions, a compromised encryptionKey allows attackers to deserialize malicious objects. The direct correlation between the vulnerability description and the patch changes confirms these as the vulnerable points.
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