GHSA-9rx9-7fmh-gj3g: Typo3/cms core TYPO3 Broken Access Control Vulnerability

MODERATE
Share
CVSS 6.5
CWE-269
Published
Advisory Summary

GHSA-9rx9-7fmh-gj3g is a MODERATE (CVSS 6.5) typo3 broken access control vulnerability (CWE-269: Improper Privilege Management) affecting Typo3/cms core libraries in the Packagist ecosystem. The issue involves typo3 broken access control in localization handling. Remediation is available by upgrading affected packages to version 8.7.23.

GHSA-9rx9-7fmh-gj3g at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-9rx9-7fmh-gj3g
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-269: Improper Privilege Management
Affected Product Typo3/cms core
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity High (I:H)
Availability None (A:N)

How to Fix GHSA-9rx9-7fmh-gj3g

To remediate this vulnerability, upgrade all affected Typo3/cms core dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

typo3/cms-core fixed: 8.7.23 
Upgrade typo3/cms-core to 8.7.23
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for typo3/cms-core

How to Check if You Are Affected

To determine whether your application is affected by GHSA-9rx9-7fmh-gj3g, inspect your project dependencies for Typo3/cms core:

inspect dependencies for typo3/cms-core

Analyze the terminal output to locate any version of Typo3/cms core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 8.7.23), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-269: Improper Privilege Management, where the product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. In Typo3/cms core, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

It has been discovered that backend users having limited access to specific languages are capable of modifying and creating pages in the default language which actually should be disallowed. A valid backend user account is needed in order to exploit this vulnerability.

GHSA-9rx9-7fmh-gj3g Affected Typo3/cms core Versions

1 component(s)
Fixed Versions:
8.7.23
Product / Package Ecosystem Affected Versions Fixed Version
typo3/cms-core
 Packagist
≥ 8.0.0
< 8.7.23
8.7.23

References

Security Fix Commit FIX COMMIT
https://github.com/TYPO3-CMS/core/commit/64b1b5dc2f7cacb2ba39b74081f4179d6393b2bf
Typo3/cms core Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/2019-01-22-3.yaml
Typo3/cms core Source Repository REPOSITORY
https://github.com/TYPO3-CMS/core
Typo3/cms core Security Information SECURITY
https://typo3.org/security/advisory/typo3-core-sa-2019-003

Frequently Asked Questions

What is GHSA-9rx9-7fmh-gj3g?
GHSA-9rx9-7fmh-gj3g is a security vulnerability in Typo3/cms core involving TYPO3 Broken Access Control in Localization Handling under CWE-269: Improper Privilege Management.
Which Typo3/cms core versions are affected?
Affected versions include releases prior to 8.7.23 across affected packages: typo3/cms-core.
What version fixes GHSA-9rx9-7fmh-gj3g?
Upgrading to 8.7.23 (or the latest patched release for your respective branch) resolves the vulnerability.
Is typo3/cms-core affected?
Yes, typo3/cms-core is affected in releases prior to 8.7.23. Upgrade your dependency to 8.7.23 or later.
What is the CVSS score of GHSA-9rx9-7fmh-gj3g?
GHSA-9rx9-7fmh-gj3g has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
What CWE is associated with GHSA-9rx9-7fmh-gj3g?
GHSA-9rx9-7fmh-gj3g is classified under CWE-269: Improper Privilege Management (The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.).
How can I check Packagist dependencies for GHSA-9rx9-7fmh-gj3g?
Run the dependency tree command: 'inspect dependencies for typo3/cms-core'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-9rx9-7fmh-gj3g",
  "modified" : "2024-05-30T15:47:57Z",
  "published" : "2024-05-30T15:47:57Z",
  "aliases" : [ ],
  "summary" : "TYPO3 Broken Access Control in Localization Handling",
  "details" : "It has been discovered that backend users having limited access to specific languages are capable of modifying and creating pages in the default language which actually should be disallowed. A valid backend user account is needed in order to exploit this vulnerability.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.0.0"
      }, {
        "fixed" : "8.7.23"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/TYPO3-CMS/core/commit/64b1b5dc2f7cacb2ba39b74081f4179d6393b2bf"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/2019-01-22-3.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/TYPO3-CMS/core"
  }, {
    "type" : "WEB",
    "url" : "https://typo3.org/security/advisory/typo3-core-sa-2019-003"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-269" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-30T15:47:57Z",
    "nvd_published_at" : null
  }
}