PT-2025-3149 · Typo3 · Typo3
Gabriel Dimitrov
·
Published
2025-01-14
·
Updated
2025-08-26
·
CVE-2024-55921
CVSS v3.1
8.8
High
| Vector | AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
TYPO3 versions prior to 11.5.42 ELTS
TYPO3 versions prior to 12.4.25 LTS
TYPO3 versions prior to 13.4.3 LTS
Description
A vulnerability has been identified in the backend user interface functionality involving deep links, which is susceptible to Cross-Site Request Forgery (CSRF). State-changing actions in downstream components incorrectly accepted submissions via HTTP GET and did not enforce the appropriate HTTP method. Successful exploitation requires the victim to have an active session on the backend user interface and to be deceived into interacting with a malicious URL targeting the backend. This can occur when the user opens a malicious link or visits a compromised website with misconfigured settings, such as the
security.backend.enforceReferrer feature being disabled or the BE/cookieSameSite configuration set to lax or none. The vulnerability in the affected downstream component “Extension Manager Module” allows attackers to retrieve and install 3rd party extensions from the TYPO3 Extension Repository, potentially leading to remote code execution.Recommendations
Update to TYPO3 version 11.5.42 ELTS to fix the problem described.
Update to TYPO3 version 12.4.25 LTS to fix the problem described.
Update to TYPO3 version 13.4.3 LTS to fix the problem described.
As a temporary workaround, consider disabling the
security.backend.enforceReferrer feature and setting the BE/cookieSameSite configuration to a more secure value until a patch is available.
Restrict access to the vulnerable “Extension Manager Module” to minimize the risk of exploitation.Exploit
Fix
RCE
CSRF
Found an issue in the description? Have something to add? Feel free to write us 👾
Related Identifiers
Affected Products
Typo3