GHSA-82vp-jr39-4j2j: Typo3/cms core TYPO3 Security Misconfiguration Vulnerability

HIGH
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CVSS 8.2
CWE-488
Published
Advisory Summary

GHSA-82vp-jr39-4j2j is a HIGH (CVSS 8.2) typo3 security misconfiguration vulnerability (CWE-488: Exposure of Data Element to Wrong Session) affecting Typo3/cms core libraries in the Packagist ecosystem. The issue involves typo3 security misconfiguration in frontend session handling. Remediation is available by upgrading affected packages to version 8.7.27, 9.5.8.

GHSA-82vp-jr39-4j2j at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-82vp-jr39-4j2j
Severity HIGH
CVSS v3.1 Base Score 8.2
CWE Classification CWE-488: Exposure of Data Element to Wrong Session
Affected Product Typo3/cms core
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 8.2

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

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

How to Fix GHSA-82vp-jr39-4j2j

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: 8.7.27 
Upgrade typo3/cms-core to 8.7.27
typo3/cms-core fixed: 9.5.8 
Upgrade typo3/cms-core to 9.5.8
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-82vp-jr39-4j2j, 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 8.7.27), 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-488: Exposure of Data Element to Wrong Session, where the product does not sufficiently enforce boundaries between the states of different sessions, causing data to be provided to, or used by, the wrong session. 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 session data of properly authenticated and logged in frontend users is kept and transformed into an anonymous user session during the logout process. This way the next user using the same client application gains access to previous session data.

GHSA-82vp-jr39-4j2j Affected Typo3/cms core Versions

2 component(s)
Fixed Versions:
8.7.279.5.8
Product / Package Ecosystem Affected Versions Fixed Version
typo3/cms-core
 Packagist
≥ 8.0.0
< 8.7.27
8.7.27
typo3/cms-core
 Packagist
≥ 9.0.0
< 9.5.8
9.5.8

References

Security Fix Commit FIX COMMIT
https://github.com/TYPO3-CMS/core/commit/c8c08ca0c26db02753c243e175a8a045628341b6
Security Fix Commit FIX COMMIT
https://github.com/TYPO3-CMS/core/commit/fe43834075ae283c8cd91949e9f1dfd18b2d492f
Typo3/cms core Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/2019-06-25-3.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-2019-018

Frequently Asked Questions

What is GHSA-82vp-jr39-4j2j?
GHSA-82vp-jr39-4j2j is a security vulnerability in Typo3/cms core involving TYPO3 Security Misconfiguration in Frontend Session Handling under CWE-488: Exposure of Data Element to Wrong Session.
Which Typo3/cms core versions are affected?
Affected versions include releases prior to 8.7.27, 9.5.8 across affected packages: typo3/cms-core.
What version fixes GHSA-82vp-jr39-4j2j?
Upgrading to 8.7.27, 9.5.8 (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 8.7.27, 9.5.8. Upgrade your dependency to 8.7.27, 9.5.8 or later.
What is the CVSS score of GHSA-82vp-jr39-4j2j?
GHSA-82vp-jr39-4j2j has a CVSS v3.1 base score of 8.2 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.
What CWE is associated with GHSA-82vp-jr39-4j2j?
GHSA-82vp-jr39-4j2j is classified under CWE-488: Exposure of Data Element to Wrong Session (The product does not sufficiently enforce boundaries between the states of different sessions, causing data to be provided to, or used by, the wrong session.).
How can I check Packagist dependencies for GHSA-82vp-jr39-4j2j?
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-82vp-jr39-4j2j",
  "modified" : "2024-05-30T18:22:41Z",
  "published" : "2024-05-30T18:22:41Z",
  "aliases" : [ ],
  "summary" : "TYPO3 Security Misconfiguration in Frontend Session Handling",
  "details" : "It has been discovered session data of properly authenticated and logged in frontend users is kept and transformed into an anonymous user session during the logout process. This way the next user using the same client application gains access to previous session data.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.0.0"
      }, {
        "fixed" : "8.7.27"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0"
      }, {
        "fixed" : "9.5.8"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/TYPO3-CMS/core/commit/c8c08ca0c26db02753c243e175a8a045628341b6"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/TYPO3-CMS/core/commit/fe43834075ae283c8cd91949e9f1dfd18b2d492f"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/2019-06-25-3.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/TYPO3-CMS/core"
  }, {
    "type" : "WEB",
    "url" : "https://typo3.org/security/advisory/typo3-core-sa-2019-018"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-488" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-30T18:22:41Z",
    "nvd_published_at" : null
  }
}