GHSA-x428-565f-8xj2
TYPO3 Arbitrary Code Execution and Cross-Site Scripting in Backend API
Backend API configuration using Page TSconfig is vulnerable to arbitrary code execution and cross-site scripting. TSconfig fields of page properties in backend forms can be used to inject malicious sequences. Field tsconfig_includes is vulnerable to directory traversal leading to same scenarios as having direct access to TSconfig settings.
A valid backend user account having access to modify values for fields pages.TSconfig and pages.tsconfig_includes is needed in order to exploit this vulnerability.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
What each source reports
GitHub Advisories Score used
TYPO3 Arbitrary Code Execution and Cross-Site Scripting in Backend API
Backend API configuration using Page TSconfig is vulnerable to arbitrary code execution and cross-site scripting. TSconfig fields of page properties in backend forms can be used to inject malicious sequences. Field tsconfig_includes is vulnerable to directory traversal leading to same scenarios as having direct access to TSconfig settings.
A valid backend user account having access to modify values for fields pages.TSconfig and pages.tsconfig_includes is needed in order to exploit this vulnerability.
- Record
GHSA-x428-565f-8xj2- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-22, CWE-79
- Updated
- 2026-11-02
OSV
TYPO3 Arbitrary Code Execution and Cross-Site Scripting in Backend API
Backend API configuration using Page TSconfig is vulnerable to arbitrary code execution and cross-site scripting. TSconfig fields of page properties in backend forms can be used to inject malicious sequences. Field tsconfig_includes is vulnerable to directory traversal leading to same scenarios as having direct access to TSconfig settings.
A valid backend user account having access to modify values for fields pages.TSconfig and pages.tsconfig_includes is needed in order to exploit this vulnerability.
- Record
GHSA-x428-565f-8xj2- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-22, CWE-79
- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
typo3/cms-corePackagist | 8.0.0 up to 8.7.27 | 8.7.27 |
typo3/cms-corePackagist | 9.0.0 up to 9.5.8 | 9.5.8 |
typo3/cms-corePackagist | 8.0.0 up to 8.7.27, plus listed versions v8.7.10v8.7.11v8.7.12v8.7.13v8.7.14 Show 15 moreShow lessv8.7.15v8.7.16v8.7.17v8.7.18v8.7.19v8.7.20v8.7.21v8.7.22v8.7.23v8.7.24v8.7.25v8.7.26v8.7.7v8.7.8v8.7.9 | 8.7.27 |
typo3/cms-corePackagist | 9.0.0 up to 9.5.8, plus listed versions v9.0.0v9.1.0v9.2.0v9.2.1v9.3.0 Show 12 moreShow lessv9.3.1v9.3.2v9.3.3v9.4.0v9.5.0v9.5.1v9.5.2v9.5.3v9.5.4v9.5.5v9.5.6v9.5.7 | 9.5.8 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
GHSA-x428-565f-8xj2 is a high vulnerability (CVSS 8.8) in typo3/cms-core, published May 30, 2024. No source lists public exploit code. Fixed in typo3/cms-core 8.7.27.
References
github.com/TYPO3-CMS/core/commit/3a99a0877de6ad9cb39ba73146292b90e13294db
typo3.org/security/advisory/typo3-core-sa-2019-019