CyberSecBulletin
CVE-2025-47940NVD status: Analyzed

typo3: Unverified Ownership

Published Updated By the CyberSecBulletin desk

CVE-2025-47940 is a high-severity unverified ownership vulnerability in typo3, with a CVSS 3.1 base score of 7.2 out of 10. It can be exploited remotely over the network by an attacker with administrator privileges, without any action from a user. Affected typo3 versions: >= 10.0.0, < 10.4.50; >= 11.0.0, < 11.5.44; >= 12.0.0, < 12.4.31, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.46% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of typo3 you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on github.com for workarounds and exact fixed builds.

Affected products and versions

VendorProductAffected versionsFixed in
TYPO3typo3>= 10.0.0, < 10.4.50; >= 11.0.0, < 11.5.44; >= 12.0.0, < 12.4.31; >= 13.0.0, < 13.4.12Not stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
HighAdministrator-level access is required first.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (github.com).

Official description

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.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Unverified Ownership

The product does not properly verify that a critical resource is owned by the proper entity.

How developers prevent this class of flaw

  • Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
  • Consider following the principle of separation of privilege. Require multiple conditions to be met before permitting access to a system resource.

More Unverified Ownership vulnerabilities (CWE-283)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in typo3

All typo3 vulnerabilities

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