TYPO3 up to 8.7.26/9.5.7 Deserialization deserialization

Summaryinfo

A vulnerability classified as critical has been found in TYPO3 up to 8.7.26/9.5.7. The impacted element is an unknown function of the component Deserialization. The manipulation leads to deserialization. This vulnerability is uniquely identified as CVE-2019-12747. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in TYPO3 up to 8.7.26/9.5.7 (Content Management System) and classified as critical. This issue affects some unknown processing of the component Deserialization. The manipulation with an unknown input leads to a deserialization vulnerability. Using CWE to declare the problem leads to CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

TYPO3 8.x through 8.7.26 and 9.x through 9.5.7 allows Deserialization of Untrusted Data.

The weakness was disclosed 07/09/2019. The identification of this vulnerability is CVE-2019-12747 since 06/06/2019. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 01/29/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-3124). The entry VDB-137508 is pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Content Management System

Name

• TYPO3

Version

• 8.7.0
• 8.7.1
• 8.7.2
• 8.7.3
• 8.7.4
• 8.7.5
• 8.7.6
• 8.7.7
• 8.7.8
• 8.7.9
• 8.7.10
• 8.7.11
• 8.7.12
• 8.7.13
• 8.7.14
• 8.7.15
• 8.7.16
• 8.7.17
• 8.7.18
• 8.7.19
• 8.7.20
• 8.7.21
• 8.7.22
• 8.7.23
• 8.7.24
• 8.7.25
• 8.7.26
• 9.5.0
• 9.5.1
• 9.5.2
• 9.5.3
• 9.5.4
• 9.5.5
• 9.5.6
• 9.5.7

License

• open-source

Website

• Product: https://typo3.org/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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