CVE-2026-49741
TYPO3 CMS has Privilege Escalation & SQL Injection in its Form Framework
Description
### Problem Backend users with write access to the `form_definition` database table were able to directly create, update, or delete form definition records via `DataHandler`, bypassing the Form Framework's persistence validation and permission checks. This allowed injecting arbitrary form configurations, re-enabling attack vectors originally addressed in [TYPO3-CORE-SA-2018-003](https://typo3.org/security/advisory/typo3-core-sa-2018-003), including SQL injection and privilege escalation. ### Solution Update to TYPO3 version 14.3.3 LTS that fixes the problem described. ### Credits TYPO3 CMS thanks Selçuk Güney for reporting this issue, and to TYPO3 core & security team member Oliver Hader for fixing it. ### Resources * [TYPO3-CORE-SA-2026-017](https://typo3.org/security/advisory/typo3-core-sa-2026-017)
How to fix CVE-2026-49741
To remediate CVE-2026-49741, upgrade the affected package to a fixed version below.
- —upgrade to 14.3.3 or later
- —upgrade to 14.3.3 or later
Is CVE-2026-49741 being exploited?
No exploitation signal available. Neither CISA KEV nor a current EPSS score has been published for CVE-2026-49741.
Affected packages (2)
- >= 14.0.0, < 14.3.3
- >= 14.0.0, < 14.3.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N |