high CVSS 7.2

CVE-2025-47940·PHP vulnerability

TYPO3 is an open source, PHP based web content management system. Starting in version 10.0.0 and prior to versions 10.4.50 ELTS, 11.5.44 ELTS, 12.4.31 LTS, and 13.4.12 LTS, administrator-level backend users without system maintainer privileges can escalate their privileges and gain system maintainer access. Exploiting this vulnerability requires a valid administrator account. Users should update to TYPO3 version 10.4.50 ELTS, 11.5.44 ELTS, 12.4.31 LTS, or 13.4.12 LTS to fix the problem.

Severity
high
Software
PHP
Fixed in
13.4.12
Published
2025-05-20

Affected versions

From: 13.0.0

Until: 13.4.12

Fixed in: 13.4.12

How to fix this CVE

TYPO3 CMS installations are vulnerable to privilege escalation when non-system-maintainer administrators gain unauthorized access to sensitive backend functions. Immediately upgrade to TYPO3 version 13.4.12 LTS or later, and verify that all administrator accounts have appropriate role restrictions applied. Review backend access logs for suspicious privilege elevation attempts since the vulnerability requires valid admin credentials to exploit.

sudo dnf update php php-common php-cli php-fpm

Defensia detects this vulnerability

How to check if you are affected

  1. Check TYPO3 version: Log into the TYPO3 backend, navigate to Admin Tools > System Information and note the 'TYPO3 Version' displayed
  2. Verify installation path: Run 'grep "TYPO3_version" /path/to/typo3/sysext/core/ext_emconf.php | head -1' to confirm the exact version
  3. Search backend audit logs: Query the sys_log table for entries with userId referencing non-maintainer accounts and action fields indicating 'Admin Functions' or 'System Configuration' access
  4. Confirm patch installation: After updating, re-check TYPO3 version in Admin Tools; it should display 13.4.12 or higher

FAQ

What is CVE-2025-47940?

A privilege escalation vulnerability in TYPO3 CMS that allows backend administrators without system maintainer privileges to elevate their access level and gain full system control through backend manipulation functions.

Is CVE-2025-47940 being actively exploited?

No, this vulnerability is not currently listed on the CISA Known Exploited Vulnerabilities catalog, and no public exploits have been disclosed, though attackers with valid admin credentials pose a risk.

What versions of TYPO3 are affected by CVE-2025-47940?

TYPO3 versions 10.0.0 through 13.4.11 are vulnerable; versions 10.4.50 ELTS, 11.5.44 ELTS, 12.4.31 LTS, and 13.4.12 LTS and later contain the fix.

How do I check if my server is vulnerable to CVE-2025-47940?

Connect to your TYPO3 backend as an administrator and check Admin Tools > System Information to view your TYPO3 version; if it is below 13.4.12 LTS, your installation is vulnerable.

Does Defensia detect CVE-2025-47940?

Yes — Defensia's CVE advisory scanner compares installed package versions against the NVD database. If TYPO3 is installed on a monitored server, CVE-2025-47940 will appear in your dashboard with remediation steps.

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References

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