CVE-2026-47346

June 9, 2026, 1:46 p.m.

7.6
High

Description

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.

Product(s) Impacted

Vendor Product Versions
Typo3
  • Typo3 Cms
  • <10.4.57, 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30, 14.0.0-14.3.2

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-178
Improper Handling of Case Sensitivity
The product does not properly account for differences in case sensitivity when accessing or determining the properties of a resource, leading to inconsistent results.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a typo3 typo3_cms <10.4.57 / / / / / / /
a typo3 typo3_cms 11.0.0-11.5.50 / / / / / / /
a typo3 typo3_cms 12.0.0-12.4.45 / / / / / / /
a typo3 typo3_cms 13.0.0-13.4.30 / / / / / / /
a typo3 typo3_cms 14.0.0-14.3.2 / / / / / / /

References

https://github.com/TYPO3/typo3/commit/2030617e6f273cee7b756c695f0a48a45a31eb47
https://github.com/TYPO3/typo3/commit/eb2b2251d90339d3ab55df3d4c0378ae0c780b45
https://typo3.org/security/advisory/typo3-core-sa-2026-008

Tags

CWE-178
f4fb688c-4412-4426-b4b8-421ecf27b14a
2026-06-09
CVE-2026-47346

CVSS Score

7.6 / 10

CVSS Data - 4.0

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Attack Requirements: PRESENT
  • Privileges Required: LOW
  • User Interaction: NONE
  • Scope:
  • Confidentiality Impact: HIGH
  • Integrity Impact: HIGH
  • Availability Impact: NONE
  • Exploit Maturity: NOT_DEFINED

    • 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

    View Vector String

Timeline

Published: June 9, 2026, 11:16 a.m.
Last Modified: June 9, 2026, 1:46 p.m.

Status : Deferred

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

f4fb688c-4412-4426-b4b8-421ecf27b14a

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.