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Advisory details: vulnrichment / CVE-2026-11607
Advisory ID vulnrichment/CVE-2026-11607
Aliases
Summary Backend users with access to the Form Framework were able to use files not ending in .form.yaml as form definitions, which were processed without denying the incorrect file extension. Maliciously crafted form definition files can be used to execute arbitrary SQL statements, allowing attackers to escalate privileges by creating administrative backend user accounts. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30 and 14.0.0-14.3.2.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-862 Missing Authorization
System Score Found at
cvssv4 7.6
ssvc Track
Reference id Reference type URL
040d50d082a01f9e8bd113effd91290a9bb3b69e Other https://github.com/TYPO3/typo3/commit/040d50d082a01f9e8bd113effd91290a9bb3b69e
50974c658f647f1aece347b5d6d5acc3c87f2dca Other https://github.com/TYPO3/typo3/commit/50974c658f647f1aece347b5d6d5acc3c87f2dca
typo3-core-sa-2026-019 Advisory https://typo3.org/security/advisory/typo3-core-sa-2026-019
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at None
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-06-09T12:53:44Z/ Found at None

Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-06-09T12:53:44Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/11xxx/CVE-2026-11607.json

Source Advisory: vulnrichment/CVE-2026-11607

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'total'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]