### Problem Backend users were able to move records to a different page without having edit permissions on the source page. ### Solution Update to TYPO3 versions 13.4.31 LTS, 14.3.3 LTS that fix the problem described. ### Credits TYPO3 CMS thanks Hyunseo Shin for reporting this issue, and TYPO3 security team member Torben Hansen for fixing it. ### Resources * [TYPO3-CORE-SA-2026-012](https://typo3.org/security/advisory/typo3-core-sa-2026-012)
Update typo3/cms-core to 13.4.31; typo3/cms-core to 14.3.3 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanTYPO3 CMS has Broken Access Control in its DataHandler affects typo3/cms-core (composer), typo3/cms-core (composer). Severity is medium. ### Problem Backend users were able to move records to a different page without having edit permissions on the source page. ### Solution Update to TYPO3 versions 13.4.31 LTS, 14.3.3 LTS that fix the problem described. ### Credits TYPO3 CMS thanks Hyunseo Shin for reporting this issue, and TYPO3 security team member Torben Hansen for fixing it. ### Resources * [TYPO3-CORE-SA-2026-012](https://typo3.org/security/advisory/typo3-core-sa-2026-012)
AI coding agents often install or upgrade packages automatically in composer. A medium vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| typo3/cms-corecomposer | >=13.0.0,<13.4.31 |
### Problem Backend users were able to move records to a different page without having edit permissions on the source page. ### Solution Update to TYPO3 versions 13.4.31 LTS, 14.3.3 LTS that fix the problem described. ### Credits TYPO3 CMS thanks Hyunseo Shin for reporting this issue, and TYPO3 security team member Torben Hansen for fixing it. ### Resources * [TYPO3-CORE-SA-2026-012](https://typo3.org/security/advisory/typo3-core-sa-2026-012)
Update typo3/cms-core to 13.4.31; typo3/cms-core to 14.3.3 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanTYPO3 CMS has Broken Access Control in its DataHandler affects typo3/cms-core (composer), typo3/cms-core (composer). Severity is medium. ### Problem Backend users were able to move records to a different page without having edit permissions on the source page. ### Solution Update to TYPO3 versions 13.4.31 LTS, 14.3.3 LTS that fix the problem described. ### Credits TYPO3 CMS thanks Hyunseo Shin for reporting this issue, and TYPO3 security team member Torben Hansen for fixing it. ### Resources * [TYPO3-CORE-SA-2026-012](https://typo3.org/security/advisory/typo3-core-sa-2026-012)
AI coding agents often install or upgrade packages automatically in composer. A medium vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| typo3/cms-corecomposer | >=13.0.0,<13.4.31 |
| 13.4.31 |
| typo3/cms-corecomposer | >=14.0.0,<14.3.3 | 14.3.3 |
|---|
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard| 13.4.31 |
| typo3/cms-corecomposer | >=14.0.0,<14.3.3 | 14.3.3 |
|---|
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard