CVE-2022-23504
TYPO3 contains Sensitive Information Disclosure via YAML Placeholder Expressions in Site Configuration
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
TYPO3 contains Sensitive Information Disclosure via YAML Placeholder Expressions in Site Configuration
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.
- Record
CVE-2022-23504- CVSS 3.1
- 5.7 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:L - Weakness
- CWE-200, CWE-917
- Updated
- 2026-11-02
EUVDEUVD-2022-7570
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.
- Record
EUVD-2022-7570- CVSS 3.1
- 5.7 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-8w3p-qh3x-6gjr
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 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
- Record
GHSA-8w3p-qh3x-6gjr- CVSS 3.1
- 5.7 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:L - Weakness
- CWE-200, CWE-917
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2022-23504- CVSS 3.1
- 5.7 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:L - CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-200, CWE-917
- Updated
- 2026-11-02
OSV
TYPO3 contains Sensitive Information Disclosure via YAML Placeholder Expressions in Site Configuration
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.
- Record
CVE-2022-23504- CVSS 3.1
- 5.7 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:L - Weakness
- CWE-200, CWE-917
- Updated
- 2026-11-02
OSVGHSA-8w3p-qh3x-6gjr
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 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
- Record
GHSA-8w3p-qh3x-6gjr- CVSS 3.1
- 5.7 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:L - Weakness
- CWE-200, CWE-917
- Updated
- 2026-11-02
OSVBIT-typo3-2022-23504 No score
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.
- Record
BIT-typo3-2022-23504- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
typo3/cms-corePackagist |
9.0.0 up to 9.5.38 | 9.5.38 |
typo3/cms-corePackagist |
10.0.0 up to 10.4.33 | 10.4.33 |
typo3/cms-corePackagist |
11.0.0 up to 11.5.20 | 11.5.20 |
typo3/cms-corePackagist |
12.0.0 up to 12.1.1 | 12.1.1 |
typo3/cmsPackagist |
10.0.0 up to 10.4.33 | 10.4.33 |
typo3/cmsPackagist |
11.0.0 up to 11.5.20 | 11.5.20 |
typo3/cmsPackagist |
12.0.0 up to 12.1.1 | 12.1.1 |
typo3Bitnami |
9.0.0 up to 9.5.38, 10.0.0 up to 10.4.33, 11.0.0 up to 11.5.20, 12.0.0 up to 12.1.1 | 9.5.3810.4.3311.5.2012.1.1 |
typo3/cms-corePackagist |
9.0.0 up to 9.5.38, plus listed versions v9.0.0v9.1.0v9.2.0v9.2.1v9.3.0 Show 36 moreShow lessv9.3.1v9.3.2v9.3.3v9.4.0v9.5.0v9.5.1v9.5.10v9.5.11v9.5.12v9.5.13v9.5.14v9.5.15v9.5.16v9.5.17v9.5.18v9.5.19v9.5.2v9.5.20v9.5.21v9.5.22v9.5.23v9.5.24v9.5.25v9.5.26v9.5.27v9.5.28v9.5.29v9.5.3v9.5.30v9.5.31v9.5.4v9.5.5v9.5.6v9.5.7v9.5.8v9.5.9 |
9.5.38 |
typo3/cms-corePackagist |
10.0.0 up to 10.4.33, plus listed versions v10.0.0v10.1.0v10.2.0v10.2.1v10.2.2 Show 34 moreShow lessv10.3.0v10.4.0v10.4.1v10.4.10v10.4.11v10.4.12v10.4.13v10.4.14v10.4.15v10.4.16v10.4.17v10.4.18v10.4.19v10.4.2v10.4.20v10.4.21v10.4.22v10.4.23v10.4.24v10.4.25v10.4.26v10.4.27v10.4.28v10.4.29v10.4.3v10.4.30v10.4.31v10.4.32v10.4.4v10.4.5v10.4.6v10.4.7v10.4.8v10.4.9 |
10.4.33 |
Show 5 moreShow less
| Package | Affected | Fixed |
|---|---|---|
typo3/cms-corePackagist |
11.0.0 up to 11.5.20, plus listed versions v11.0.0v11.1.0v11.1.1v11.2.0v11.3.0 Show 24 moreShow lessv11.3.1v11.3.2v11.3.3v11.4.0v11.5.0v11.5.1v11.5.10v11.5.11v11.5.12v11.5.13v11.5.14v11.5.15v11.5.16v11.5.17v11.5.18v11.5.19v11.5.2v11.5.3v11.5.4v11.5.5v11.5.6v11.5.7v11.5.8v11.5.9 |
11.5.20 |
typo3/cms-corePackagist |
12.0.0 up to 12.1.1, plus listed versions v12.0.0v12.1.0 |
12.1.1 |
typo3/cmsPackagist |
10.0.0 up to 10.4.33, plus listed versions v10.0.0v10.1.0v10.2.0v10.2.1v10.2.2 Show 34 moreShow lessv10.3.0v10.4.0v10.4.1v10.4.10v10.4.11v10.4.12v10.4.13v10.4.14v10.4.15v10.4.16v10.4.17v10.4.18v10.4.19v10.4.2v10.4.20v10.4.21v10.4.22v10.4.23v10.4.24v10.4.25v10.4.26v10.4.27v10.4.28v10.4.29v10.4.3v10.4.30v10.4.31v10.4.32v10.4.4v10.4.5v10.4.6v10.4.7v10.4.8v10.4.9 |
10.4.33 |
typo3/cmsPackagist |
11.0.0 up to 11.5.20, plus listed versions v11.0.0v11.1.0v11.1.1v11.2.0v11.3.0 Show 24 moreShow lessv11.3.1v11.3.2v11.3.3v11.4.0v11.5.0v11.5.1v11.5.10v11.5.11v11.5.12v11.5.13v11.5.14v11.5.15v11.5.16v11.5.17v11.5.18v11.5.19v11.5.2v11.5.3v11.5.4v11.5.5v11.5.6v11.5.7v11.5.8v11.5.9 |
11.5.20 |
typo3/cmsPackagist |
12.0.0 up to 12.1.1, plus listed versions v12.0.0v12.1.0 |
12.1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-23504 is a medium vulnerability (CVSS 5.7) in Typo3, published December 13, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.55%, the 46th percentile. Fixed in typo3/cms-core 9.5.38.
References
github.com/TYPO3/typo3/security/advisories/GHSA-8w3p-qh3x-6gjr
typo3.org/security/advisory/typo3-core-sa-2022-016
nvd.nist.gov/vuln/detail/CVE-2022-23504