Advisory details:
github_osv / GHSA-pjpj-v387-x4vq
| Advisory ID | github_osv/GHSA-pjpj-v387-x4vq |
| Aliases |
CVE-2026-11607
|
| Summary | TYPO3 CMS has Broken Access Control in its Form Framework ### Problem 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. ### 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 “Ethan” for reporting this issue, and TYPO3 core & security team member Oliver Hader for fixing it. ### Resources * [TYPO3-CORE-SA-2026-019](https://typo3.org/security/advisory/typo3-core-sa-2026-019) |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 6.8 |
| Risk | 3.4 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| CWE-862 | Missing Authorization |
| System | Score | Found at |
|---|---|---|
| cvssv4 | 7.6 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-pjpj-v387-x4vq/GHSA-pjpj-v387-x4vq.json |
| generic_textual | HIGH |
| Reference id | Reference type | URL |
|---|---|---|
| https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2026-11607.yaml | ||
| https://github.com/TYPO3/typo3 | ||
| https://github.com/TYPO3/typo3/security/advisories/GHSA-pjpj-v387-x4vq | ||
| 040d50d082a01f9e8bd113effd91290a9bb3b69e | Other | https://github.com/TYPO3/typo3/commit/040d50d082a01f9e8bd113effd91290a9bb3b69e |
| 50974c658f647f1aece347b5d6d5acc3c87f2dca | Other | https://github.com/TYPO3/typo3/commit/50974c658f647f1aece347b5d6d5acc3c87f2dca |
| CVE-2026-11607 | https://nvd.nist.gov/vuln/detail/CVE-2026-11607 | |
| typo3-core-sa-2026-019 | Advisory | https://typo3.org/security/advisory/typo3-core-sa-2026-019 |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| 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/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/11xxx/CVE-2026-11607.json
Source Advisory: vulnrichment/CVE-2026-11607
[{'Exploitation': 'none'},
{'Automatable': 'no'},
{'Technical Impact': 'total'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]
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
[{'Exploitation': 'none'},
{'Automatable': 'no'},
{'Technical Impact': 'total'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]