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CVE-2022-23504

Date: December 14, 2022

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.

Language: PHP

Severity Score

Related Resources (8)

https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2022-23504.yaml
https://nvd.nist.gov/vuln/detail/CVE-2022-23504
https://typo3.org/security/advisory/typo3-core-sa-2022-016
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2022-23504.yaml
https://github.com/TYPO3/typo3
https://github.com/TYPO3/typo3/commit/d1e627ff7eef07bd94c53db861e85977b203900a
https://github.com/TYPO3/typo3/security/advisories/GHSA-8w3p-qh3x-6gjr
https://www.mend.io/vulnerability-database/CVE-2022-23504

Severity Score

Weakness Type (CWE)

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')

CWE-917

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): LOW
Availability (A): LOW

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