CVE-2026-49741
CVE-2026-49741 is a high-severity vulnerability with a CVSS 4.0 base score of 8.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-89.
Key facts
- Severity: High (CVSS 4.0 base score 8.7)
- EPSS exploit prediction: 0% (15th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-35402
- Weakness: CWE-89
- Published:
- Last modified:
Description
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, including SQL injection and privilege escalation. This issue affects TYPO3 CMS versions 14.0.0-14.3.3.
Frequently asked questions
- What is CVE-2026-49741?
- 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, including SQL injection and privilege escalation. This issue affects TYPO3 CMS versions 14.0.0-14.3.3.
- How severe is CVE-2026-49741?
- CVE-2026-49741 has a CVSS 4.0 base score of 8.7, rated high severity.
- Is CVE-2026-49741 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-49741?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-49741 have an EU (EUVD) identifier?
- Yes. CVE-2026-49741 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35402.
- When was CVE-2026-49741 published?
- CVE-2026-49741 was published on 2026-06-09 and last updated on 2026-06-17.
References
- https://github.com/TYPO3/typo3/commit/c90493c13b633f328cf2c066182c90a1655ff0fc
- https://typo3.org/security/advisory/typo3-core-sa-2018-003
- https://typo3.org/security/advisory/typo3-core-sa-2026-017
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