Is typo3/cms-core 12.3 vulnerable?
Composer · 1 release from 12.3.0 to 12.3.0 · latest typo3/cms-core is 14.3.10 · checked 2 Nov 2026
Yes: 30 known advisories
Yes. typo3/cms-core 12.3.0, the last 12.3 release, is affected by 30 known security advisories (7 high, 19 medium, 4 low), including CVE-2026-11607, CVE-2026-47343, CVE-2026-47346. Upgrade to 12.4.46 or later to fix all of them.
composer require typo3/cms-core:^12.4.46Advisories affecting typo3/cms-core 12.3.0
TYPO3 CMS has Broken Access Control in its Form Framework
- Affected
- <10.4.57 · >=11.0.0 <11.5.51 · >=12.0.0 <12.4.46 · >=13.0.0 <13.4.31 · >=14.0.0 <14.3.3
- Fixed in
- 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3
TYPO3 CMS has Broken Access Control in the Recycler Module
- Affected
- <10.4.57 · >=11.0.0 <11.5.51 · >=12.0.0 <12.4.46 · >=13.0.0 <13.4.31 · >=14.0.0 <14.3.3
- Fixed in
- 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3
TYPO3 CMS has an Open Redirect Vulnerability via Core Utilities
- Affected
- <10.4.57 · >=11.0.0 <11.5.51 · >=12.0.0 <12.4.46 · >=13.0.0 <13.4.31 · >=14.0.0 <14.3.3
- Fixed in
- 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3
TYPO3 CMS: Destructive Actions on File Mount Folders
- Affected
- <10.4.57 · >=11.0.0 <11.5.51 · >=12.0.0 <12.4.46 · >=13.0.0 <13.4.31 · >=14.0.0 <14.3.3
- Fixed in
- 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3
TYPO3 CMS has Broken Access Control in its Form Framework
- Affected
- <10.4.57 · >=11.0.0 <11.5.51 · >=12.0.0 <12.4.46 · >=13.0.0 <13.4.31 · >=14.0.0 <14.3.3
- Fixed in
- 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3
TYPO3 CMS has Broken Access Control in its Media Module
- Affected
- >=11.0.0 <11.5.51 · >=12.0.0 <12.4.46 · >=13.0.0 <13.4.31 · >=14.0.0 <14.3.3
- Fixed in
- 11.5.51, 12.4.46, 13.4.31, 14.3.3
TYPO3 CMS has Insecure Deserialization via Core API
- Affected
- <10.4.57 · >=11.0.0 <11.5.51 · >=12.0.0 <12.4.46 · >=13.0.0 <13.4.31 · >=14.0.0 <14.3.3
- Fixed in
- 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3
TYPO3 CMS has Broken Access Control in its File Abstraction Layer
- Affected
- <10.4.57 · >=11.0.0 <11.5.51 · >=12.0.0 <12.4.46 · >=13.0.0 <13.4.31 · >=14.0.0 <14.3.3
- Fixed in
- 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3
TYPO3 CMS has Broken Access Control in Backend API
- Affected
- <10.4.57 · >=11.0.0 <11.5.51 · >=12.0.0 <12.4.46 · >=13.0.0 <13.4.31 · >=14.0.0 <14.3.3
- Fixed in
- 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3
TYPO3 CMS: Broken Access Control in Media Module
- Affected
- <10.4.57 · >=11.0.0 <11.5.51 · >=12.0.0 <12.4.46 · >=13.0.0 <13.4.31 · >=14.0.0 <14.3.3
- Fixed in
- 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3
TYPO3 CMS Allows Insecure Deserialization via Mailer File Spool
- Affected
- >=14.0.0 <14.0.2 · >=13.0.0 <13.4.23 · >=12.0.0 <12.4.41 · >=11.0.0 <11.5.49 · >=10.0.0 <10.4.55
- Fixed in
- 10.4.55, 11.5.49, 12.4.41, 13.4.23, 14.0.2
TYPO3 CMS exposes sensitive information in an error message
- Affected
- >=9.0.0 <12.4.37 · >=10.0.0 <12.4.37 · >=11.0.0 <12.4.37 · >=12.0.0 <12.4.37 · >=13.0.0 <13.4.18
- Fixed in
- 12.4.37, 13.4.18
TYPO3 CMS has an open‑redirect vulnerability
- Affected
- >=9.0.0 <12.4.37 · >=10.0.0 <12.4.37 · >=11.0.0 <12.4.37 · >=12.0.0 <12.4.37 · >=13.0.0 <13.4.18
- Fixed in
- 12.4.37, 13.4.18
TYPO3 CMS uses insufficient entropy when generating passwords
- Affected
- >=12.0.0 <12.4.37 · >=13.0.0 <13.4.18
- Fixed in
- 12.4.37, 13.4.18
TYPO3 Allows Privilege Escalation to System Maintainer
- Affected
- >=10.4.0 <10.4.50 · >=11.0.0 <11.5.44 · >=12.0.0 <12.4.31 · >=13.0.0 <13.4.12
- Fixed in
- 10.4.50, 11.5.44, 12.4.31, 13.4.12
TYPO3 Allows Unrestricted File Upload in File Abstraction Layer
- Affected
- >=9.0.0 <9.5.51 · >=10.0.0 <10.4.50 · >=11.0.0 <11.5.44 · >=12.0.0 <12.4.31 · >=13.0.0 <13.4.12
- Fixed in
- 9.5.51, 10.4.50, 11.5.44, 12.4.31, 13.4.12
TYPO3 Unverified Password Change for Backend Users
- Affected
- >=9.0.0 <9.5.51 · >=10.0.0 <10.4.50 · >=11.0.0 <11.5.44 · >=12.0.0 <12.4.31 · >=13.0.0 <13.4.12
- Fixed in
- 9.5.51, 10.4.50, 11.5.44, 12.4.31, 13.4.12
TYPO3 Allows Information Disclosure via DBAL Restriction Handling
- Affected
- >=9.0.0 <9.5.51 · >=10.0.0 <10.4.50 · >=11.0.0 <11.5.44 · >=12.0.0 <12.4.31 · >=13.0.0 <13.4.12
- Fixed in
- 9.5.51, 10.4.50, 11.5.44, 12.4.31, 13.4.12
TYPO3 Potential Open Redirect via Parsing Differences
- Affected
- >=9.0.0 <9.5.49 · >=10.0.0 <10.4.48 · >=11.0.0 <11.5.42 · >=12.0.0 <12.4.25 · >=13.0.0 <13.4.3
- Fixed in
- 9.5.49, 10.4.48, 11.5.42, 12.4.25, 13.4.3
TYPO3 vulnerable to an Uncontrolled Resource Consumption in the ShowImageController
- Affected
- >=9.0.0 <9.5.48 · >=10.0.0 <10.4.45 · >=11.0.0 <11.5.37 · >=12.0.0 <12.4.15 · >=13.0.0 <13.1.1
- Fixed in
- 9.5.48, 10.4.45, 11.5.37, 12.4.15, 13.1.1
TYPO3 vulnerable to Cross-Site Scripting in the ShowImageController
- Affected
- >=9.0.0 <9.5.48 · >=10.0.0 <10.4.45 · >=11.0.0 <11.5.37 · >=12.0.0 <12.4.15 · >=13.0.0 <13.1.1
- Fixed in
- 9.5.48, 10.4.45, 11.5.37, 12.4.15, 13.1.1
TYPO3 vulnerable to Cross-Site Scripting in the Form Manager Module
- Affected
- >=9.0.0 <9.5.48 · >=10.0.0 <10.4.45 · >=11.0.0 <11.5.37 · >=12.0.0 <12.4.15 · >=13.0.0 <13.1.1
- Fixed in
- 9.5.48, 10.4.45, 11.5.37, 12.4.15, 13.1.1
TYPO3 Install Tool vulnerable to Code Execution
- Affected
- >=8.0.0 <8.7.57 · >=9.0.0 <9.5.46 · >=10.0.0 <10.4.43 · >=11.0.0 <11.5.35 · >=12.0.0 <12.4.11 · >=13.0.0 <13.0.1
- Fixed in
- 8.7.57, 9.5.46, 10.4.43, 11.5.35, 12.4.11, 13.0.1
Path Traversal in TYPO3 File Abstraction Layer Storages
- Affected
- >=8.0.0 <8.7.57 · >=9.0.0 <9.5.46 · >=10.0.0 <10.4.43 · >=11.0.0 <11.5.35 · >=12.0.0 <12.4.11 · >=13.0.0 <13.0.1
- Fixed in
- 8.7.57, 9.5.46, 10.4.43, 11.5.35, 12.4.11, 13.0.1
TYPO3 vulnerable to Improper Access Control Persisting File Abstraction Layer Entities via Data Handler
- Affected
- >=8.0.0 <8.7.57 · >=9.0.0 <9.5.46 · >=10.0.0 <10.4.43 · >=11.0.0 <11.5.35 · >=12.0.0 <12.4.11 · >=13.0.0 <13.0.1
- Fixed in
- 8.7.57, 9.5.46, 10.4.43, 11.5.35, 12.4.11, 13.0.1
TYPO3 vulnerable to Improper Access Control of Resources Referenced by t3:// URI Scheme
- Affected
- >=8.0.0 <8.7.57 · >=9.0.0 <9.5.46 · >=10.0.0 <10.4.43 · >=11.0.0 <11.5.35 · >=12.0.0 <12.4.11 · >=13.0.0 <13.0.1
- Fixed in
- 8.7.57, 9.5.46, 10.4.43, 11.5.35, 12.4.11, 13.0.1
TYPO3 Install Tool vulnerable to Information Disclosure of Encryption Key
- Affected
- >=8.0.0 <8.7.57 · >=9.0.0 <9.5.46 · >=10.0.0 <10.4.43 · >=11.0.0 <11.5.35 · >=12.0.0 <12.4.11 · >=13.0.0 <13.0.1
- Fixed in
- 8.7.57, 9.5.46, 10.4.43, 11.5.35, 12.4.11, 13.0.1
TYPO3 Backend Forms vulnerable to Information Disclosure of Hashed Passwords
- Affected
- >=8.0.0 <8.7.57 · >=9.0.0 <9.5.46 · >=10.0.0 <10.4.43 · >=11.0.0 <11.5.35 · >=12.0.0 <12.4.11 · >=13.0.0 <13.0.1
- Fixed in
- 8.7.57, 9.5.46, 10.4.43, 11.5.35, 12.4.11, 13.0.1
TYPO3 vulnerable to Weak Authentication in Session Handling
- Affected
- >=8.0.0 <8.7.55 · >=9.0.0 <9.5.44 · >=10.0.0 <10.4.41 · >=11.0.0 <11.5.33 · >=12.0.0 <12.4.8
- Fixed in
- 8.7.55, 9.5.44, 10.4.41, 11.5.33, 12.4.8
Information Disclosure due to Out-of-scope Site Resolution
- Affected
- >=9.4.0 <9.5.42 · >=10.0.0 <10.4.39 · >=11.0.0 <11.5.30 · >=12.0.0 <12.4.4
- Fixed in
- 9.5.42, 10.4.39, 11.5.30, 12.4.4
Which of your client projects are still on typo3/cms-core 12.3?
NPMscan reads the lockfiles in every GitHub repo you pick, finds the exact typo3/cms-core version each one installs, and checks it against these advisories. Each finding comes with the command that fixes it.
Other typo3/cms-core versions
Advisory data from OSV.dev (opens OSV.dev in a new tab), which includes the GitHub Advisory Database. Release list from the Composer registry. Refreshed daily.