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CVE-2026-47343

TYPO3 CMS - Destructive Actions on File Mount Folders

7.2 HighFix available

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. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0 through 11.5.50, 12.0.0 through 12.4.45, 13.0.0 through 13.4.30, and 14.0.0 through 14.3.2.

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
Low
Integrity
High
Availability
Low

Exploit likelihood

0.24%Up 0.2 points since Jun 9, 2026
90%50%10%1%

What each source reports

CVE List Score used 7.2

TYPO3 CMS - Destructive Actions on File Mount Folders

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. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0 through 11.5.50, 12.0.0 through 12.4.45, 13.0.0 through 13.4.30, and 14.0.0 through 14.3.2.

Record
CVE-2026-47343
CVSS 4.0
7.2 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
Weakness
CWE-862
Updated
2026-11-02
EUVDEUVD-2026-35392 7.2

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. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0 through 11.5.50, 12.0.0 through 12.4.45, 13.0.0 through 13.4.30, and 14.0.0 through 14.3.2.

Record
EUVD-2026-35392
CVSS 4.0
7.2 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-3v8v-4wg6-r7qh 7.2

TYPO3 CMS: Destructive Actions on File Mount Folders

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

Record
GHSA-3v8v-4wg6-r7qh
CVSS 4.0
7.2 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
Weakness
CWE-862
Updated
2026-11-02
NVD 7.2

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. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0 through 11.5.50, 12.0.0 through 12.4.45, 13.0.0 through 13.4.30, and 14.0.0 through 14.3.2.

Record
CVE-2026-47343
CVSS 4.0
7.2 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness
CWE-862
Updated
2026-11-02
OSV 7.2

TYPO3 CMS - Destructive Actions on File Mount Folders

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. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0 through 11.5.50, 12.0.0 through 12.4.45, 13.0.0 through 13.4.30, and 14.0.0 through 14.3.2.

Record
CVE-2026-47343
CVSS 4.0
7.2 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
Weakness
CWE-862
Updated
2026-11-02
OSVGHSA-3v8v-4wg6-r7qh 7.2

TYPO3 CMS: Destructive Actions on File Mount Folders

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

Record
GHSA-3v8v-4wg6-r7qh
CVSS 4.0
7.2 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
Weakness
CWE-862
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
typo3/cms-core
Packagist
 before 10.4.57
10.4.57
typo3/cms-core
Packagist
 11.0.0 up to 11.5.51
11.5.51
typo3/cms-core
Packagist
 12.0.0 up to 12.4.46
12.4.46
typo3/cms-core
Packagist
 13.0.0 up to 13.4.31
13.4.31
typo3/cms-core
Packagist
 14.0.0 up to 14.3.3
14.3.3
typo3/cms-core
Packagist
 before 10.4.57, plus listed versions
v10.0.0v10.1.0v10.2.0v10.2.1v10.2.2
Show 45 moreShow less
v10.3.0v10.4.0v10.4.1v10.4.10v10.4.11v10.4.12v10.4.13v10.4.14v10.4.15v10.4.16v10.4.17v10.4.18v10.4.19v10.4.2v10.4.20v10.4.21v10.4.22v10.4.23v10.4.24v10.4.25v10.4.26v10.4.27v10.4.28v10.4.29v10.4.3v10.4.30v10.4.31v10.4.32v10.4.33v10.4.34v10.4.36v10.4.37v10.4.4v10.4.5v10.4.6v10.4.7v10.4.8v10.4.9v8.7.10v8.7.11v8.7.12v8.7.13v8.7.14v8.7.15v8.7.16
10.4.57
typo3/cms-core
Packagist
 11.0.0 up to 11.5.51, plus listed versions
v11.0.0v11.1.0v11.1.1v11.2.0v11.3.0
Show 45 moreShow less
v11.3.1v11.3.2v11.3.3v11.4.0v11.5.0v11.5.1v11.5.10v11.5.11v11.5.12v11.5.13v11.5.14v11.5.15v11.5.16v11.5.17v11.5.18v11.5.19v11.5.2v11.5.20v11.5.21v11.5.22v11.5.23v11.5.24v11.5.25v11.5.26v11.5.27v11.5.28v11.5.29v11.5.3v11.5.30v11.5.31v11.5.32v11.5.33v11.5.34v11.5.35v11.5.36v11.5.37v11.5.38v11.5.39v11.5.4v11.5.40v11.5.41v11.5.5v11.5.6v11.5.7v11.5.8
11.5.51
typo3/cms-core
Packagist
 12.0.0 up to 12.4.46, plus listed versions
v12.0.0v12.1.0v12.1.1v12.1.2v12.1.3
Show 45 moreShow less
v12.2.0v12.3.0v12.4.0v12.4.1v12.4.10v12.4.11v12.4.12v12.4.13v12.4.14v12.4.15v12.4.16v12.4.17v12.4.18v12.4.19v12.4.2v12.4.20v12.4.21v12.4.22v12.4.23v12.4.24v12.4.25v12.4.26v12.4.27v12.4.28v12.4.29v12.4.3v12.4.30v12.4.31v12.4.32v12.4.33v12.4.34v12.4.35v12.4.36v12.4.37v12.4.38v12.4.39v12.4.4v12.4.40v12.4.41v12.4.42v12.4.43v12.4.44v12.4.45v12.4.5v12.4.6
12.4.46
typo3/cms-core
Packagist
 13.0.0 up to 13.4.31, plus listed versions
v13.0.0v13.0.1v13.1.0v13.1.1v13.2.0
Show 34 moreShow less
v13.2.1v13.3.0v13.3.1v13.4.0v13.4.1v13.4.10v13.4.11v13.4.12v13.4.13v13.4.14v13.4.15v13.4.16v13.4.17v13.4.18v13.4.19v13.4.2v13.4.20v13.4.21v13.4.22v13.4.23v13.4.24v13.4.25v13.4.26v13.4.27v13.4.28v13.4.29v13.4.3v13.4.30v13.4.4v13.4.5v13.4.6v13.4.7v13.4.8v13.4.9
13.4.31
typo3/cms-core
Packagist
 14.0.0 up to 14.3.3, plus listed versions
v14.0.0v14.0.1v14.0.2v14.1.0v14.1.1
Show 4 moreShow less
v14.2.0v14.3.0v14.3.1v14.3.2
14.3.3

History

History
RecordedChangedSources
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-47343 is a high vulnerability (CVSS 7.2) in Typo3 Cms, published June 9, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.24%, the 14th percentile. Fixed in typo3/cms-core 10.4.57.

References

Show 4 moreShow less
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Left out here: 64 versions. The JSON record has them.

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