Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-8w3p-qh3x-6gjr
Advisory ID github_osv/GHSA-8w3p-qh3x-6gjr
Aliases CVE-2022-23504
Summary TYPO3 CMS vulnerable to Sensitive Information Disclosure via YAML Placeholder Expressions in Site Configuration > ### CVSS: `CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:L/E:F/RL:O/RC:C` (5.3) ### Problem Due to the lack of handling user-submitted [YAML placeholder expressions](https://docs.typo3.org/m/typo3/reference-coreapi/main/en-us/Configuration/Yaml/YamlApi.html#custom-placeholder-processing) 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. ### Solution Update to TYPO3 versions 9.5.38 ELTS, 10.4.33, 11.5.20, 12.1.1 that fix the problem described above. ### Credits Thanks to TYPO3 core & security team member Oliver Hader who reported and fixed the issue. ### References * [TYPO3-CORE-SA-2022-016](https://typo3.org/security/advisory/typo3-core-sa-2022-016)
Status Published
Exploitability 0.5
Weighted Severity 5.1
Risk 2.5
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (2)
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')
System Score Found at
cvssv3.1 5.7 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/12/GHSA-8w3p-qh3x-6gjr/GHSA-8w3p-qh3x-6gjr.json
generic_textual MODERATE
Reference id Reference type URL
https://github.com/TYPO3/typo3
https://github.com/TYPO3/typo3/commit/d1e627ff7eef07bd94c53db861e85977b203900a
https://typo3.org/security/advisory/typo3-core-sa-2022-016
CVE-2022-23504 https://nvd.nist.gov/vuln/detail/CVE-2022-23504
CVE-2022-23504.YAML https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2022-23504.yaml
CVE-2022-23504.YAML https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2022-23504.yaml
GHSA-8w3p-qh3x-6gjr https://github.com/TYPO3/typo3/security/advisories/GHSA-8w3p-qh3x-6gjr
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:L Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/12/GHSA-8w3p-qh3x-6gjr/GHSA-8w3p-qh3x-6gjr.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-04-21T19:21:01Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2022/23xxx/CVE-2022-23504.json

Source Advisory: vulnrichment/CVE-2022-23504

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]