| Package | Affected versions | Patched versions |
|---|---|---|
| typo3/cms-core | ≥ 8.0.0, < 8.7.27≥ 9.0.0, < 9.5.8 | 8.7.279.5.8 |
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.
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