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Fencer Intel
high 7.6

CVE-2026-47346 json

TYPO3 CMS - Broken Access Control in Form Framework

published 5mo ago modified 2mo ago also GHSA-hwvq-2w67-rvxp , EUVD-2026-35393

cvss
7.6
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 16%
public exploits
0
none known

Summary

Backend users with file write permissions were able to upload form definition files with mixed-case extensions (e.g., .FORM.YAML) to bypass the Form Framework's upload restriction. 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.

Patch / fix

  • packagist typo3/cms-core 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3
  • packagist typo3/cms-form 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3
  • TYPO3 TYPO3 CMS 10.4.57, 11.5.51, 12.4.46, 13.4.31, 14.3.3

Is CVE-2026-47346 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
5mo ago

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 4.0 7.6 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
CNA 4.0 7.6 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected packages

ecosystem package affected fixed in
packagist typo3/cms-core
<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
10.4.57
11.5.51
12.4.46
13.4.31
14.3.3
packagist typo3/cms-form
<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
10.4.57
11.5.51
12.4.46
13.4.31
14.3.3

Affected products

  • TYPO3 TYPO3 CMS

Classification

Weakness
  • CWE-178 Improper Handling of Case Sensitivity
  • CWE-862 Missing Authorization

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.