CVE-2022-23504

TYPO3 contains Sensitive Information Disclosure via YAML Placeholder Expressions in Site Configuration

State: Published
Severity: 5.7 Medium
Published: Dec 14, 2022
Updated: Apr 21, 2025
Reserved: Jan 19, 2022

Description

TYPO3 is an open source PHP based web content management system. Versions prior to 9.5.38, 10.4.33, 11.5.20, and 12.1.1 are subject to Sensitive Information Disclosure. Due to the lack of handling user-submitted YAML placeholder expressions in the site configuration backend module, attackers could expose sensitive internal information, such as system configuration or HTTP request messages of other website visitors. A valid backend user account having administrator privileges is needed to exploit this vulnerability. This issue has been patched in versions 9.5.38 ELTS, 10.4.33, 11.5.20, 12.1.1.

Scores

CVSS	Score	Vector	Source
3.1	5.7 Medium	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:L	GitHub_M

Weaknesses

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')

Affected Products

Product	Versions
typo3TYPO3	>= 9.0.0, < 9.5.38Affected >= 10.0.0, < 10.4.33Affected >= 11.0.0, < 11.5.20Affected >= 12.0.0, < 12.1.1Affected

References

https://github.com/TYPO3/typo3/security/advisories/GHSA-8w3p-qh3x-6gjr

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