Vulnerability advisory

GHSA-3v8v-4wg6-r7qh

TYPO3 CMS: Destructive Actions on File Mount Folders

Published Jun 12, 2026Updated Sep 10, 2026OSV record ↗

Also known as CVE-2026-47343

Severity

CVSS 4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N

Affected versions

typo3/cms-core Packagist

All typo3/cms-core advisories →

Affected	Fixed in
All versions before 10.4.57	`10.4.57`Advisories →
Also listed as affected (110) `v10.0.0` `v10.1.0` `v10.2.0` `v10.2.1` `v10.2.2` `v10.3.0` `v10.4.0` `v10.4.1` `v10.4.10` `v10.4.11` `v10.4.12` `v10.4.13` `v10.4.14` `v10.4.15` `v10.4.16` `v10.4.17` `v10.4.18` `v10.4.19` `v10.4.2` `v10.4.20` `v10.4.21` `v10.4.22` `v10.4.23` `v10.4.24` `v10.4.25` `v10.4.26` `v10.4.27` `v10.4.28` `v10.4.29` `v10.4.3` `v10.4.30` `v10.4.31` `v10.4.32` `v10.4.33` `v10.4.34` `v10.4.36` `v10.4.37` `v10.4.4` `v10.4.5` `v10.4.6` `v10.4.7` `v10.4.8` `v10.4.9` `v8.7.10` `v8.7.11` `v8.7.12` `v8.7.13` `v8.7.14` `v8.7.15` `v8.7.16` `v8.7.17` `v8.7.18` `v8.7.19` `v8.7.20` `v8.7.21` `v8.7.22` `v8.7.23` `v8.7.24` `v8.7.25` `v8.7.26` `v8.7.27` `v8.7.28` `v8.7.29` `v8.7.30` `v8.7.31` `v8.7.32` `v8.7.7` `v8.7.8` `v8.7.9` `v9.0.0` `v9.1.0` `v9.2.0` `v9.2.1` `v9.3.0` `v9.3.1` `v9.3.2` `v9.3.3` `v9.4.0` `v9.5.0` `v9.5.1` `v9.5.10` `v9.5.11` `v9.5.12` `v9.5.13` `v9.5.14` `v9.5.15` `v9.5.16` `v9.5.17` `v9.5.18` `v9.5.19` `v9.5.2` `v9.5.20` `v9.5.21` `v9.5.22` `v9.5.23` `v9.5.24` `v9.5.25` `v9.5.26` `v9.5.27` `v9.5.28` `v9.5.29` `v9.5.3` `v9.5.30` `v9.5.31` `v9.5.4` `v9.5.5` `v9.5.6` `v9.5.7` `v9.5.8` `v9.5.9`
`11.0.0` to before 11.5.51	`11.5.51`Advisories →
Also listed as affected (51) `v11.0.0` `v11.1.0` `v11.1.1` `v11.2.0` `v11.3.0` `v11.3.1` `v11.3.2` `v11.3.3` `v11.4.0` `v11.5.0` `v11.5.1` `v11.5.10` `v11.5.11` `v11.5.12` `v11.5.13` `v11.5.14` `v11.5.15` `v11.5.16` `v11.5.17` `v11.5.18` `v11.5.19` `v11.5.2` `v11.5.20` `v11.5.21` `v11.5.22` `v11.5.23` `v11.5.24` `v11.5.25` `v11.5.26` `v11.5.27` `v11.5.28` `v11.5.29` `v11.5.3` `v11.5.30` `v11.5.31` `v11.5.32` `v11.5.33` `v11.5.34` `v11.5.35` `v11.5.36` `v11.5.37` `v11.5.38` `v11.5.39` `v11.5.4` `v11.5.40` `v11.5.41` `v11.5.5` `v11.5.6` `v11.5.7` `v11.5.8` `v11.5.9`
`12.0.0` to before 12.4.46	`12.4.46`Advisories →
Also listed as affected (53) `v12.0.0` `v12.1.0` `v12.1.1` `v12.1.2` `v12.1.3` `v12.2.0` `v12.3.0` `v12.4.0` `v12.4.1` `v12.4.10` `v12.4.11` `v12.4.12` `v12.4.13` `v12.4.14` `v12.4.15` `v12.4.16` `v12.4.17` `v12.4.18` `v12.4.19` `v12.4.2` `v12.4.20` `v12.4.21` `v12.4.22` `v12.4.23` `v12.4.24` `v12.4.25` `v12.4.26` `v12.4.27` `v12.4.28` `v12.4.29` `v12.4.3` `v12.4.30` `v12.4.31` `v12.4.32` `v12.4.33` `v12.4.34` `v12.4.35` `v12.4.36` `v12.4.37` `v12.4.38` `v12.4.39` `v12.4.4` `v12.4.40` `v12.4.41` `v12.4.42` `v12.4.43` `v12.4.44` `v12.4.45` `v12.4.5` `v12.4.6` `v12.4.7` `v12.4.8` `v12.4.9`
`13.0.0` to before 13.4.31	`13.4.31`Advisories →
Also listed as affected (39) `v13.0.0` `v13.0.1` `v13.1.0` `v13.1.1` `v13.2.0` `v13.2.1` `v13.3.0` `v13.3.1` `v13.4.0` `v13.4.1` `v13.4.10` `v13.4.11` `v13.4.12` `v13.4.13` `v13.4.14` `v13.4.15` `v13.4.16` `v13.4.17` `v13.4.18` `v13.4.19` `v13.4.2` `v13.4.20` `v13.4.21` `v13.4.22` `v13.4.23` `v13.4.24` `v13.4.25` `v13.4.26` `v13.4.27` `v13.4.28` `v13.4.29` `v13.4.3` `v13.4.30` `v13.4.4` `v13.4.5` `v13.4.6` `v13.4.7` `v13.4.8` `v13.4.9`
`14.0.0` to before 14.3.3	`14.3.3`Advisories →
Also listed as affected (9) `v14.0.0` `v14.0.1` `v14.0.2` `v14.1.0` `v14.1.1` `v14.2.0` `v14.3.0` `v14.3.1` `v14.3.2`

Description

Problem

Non-privileged backend users with file mount access were able to perform write operations (move, delete, rename) on folders representing the root of an active file mount due to missing authorization restrictions.

Solution

Update to TYPO3 versions 10.4.57 ELTS, 11.5.51 ELTS, 12.4.46 ELTS, 13.4.31 LTS, 14.3.3 LTS that fix the problem described.

Credits

TYPO3 CMS thanks Arne Uplegger for reporting this issue, and TYPO3 security team member Elias Häußler for fixing it.

Resources

TYPO3-CORE-SA-2026-007