CVE-2023-43648: Baserproject/basercms Path Traversal Vulnerability

MODERATE
Advisory Identifier: GHSA-hmqj-gv2m-hq55
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CVSS 4.9
CWE-22
Published
Advisory Summary

CVE-2023-43648 is a MODERATE (CVSS 4.9) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Baserproject/basercms libraries in the Packagist ecosystem. The issue involves basercms directory traversal vulnerability in form submission data management feature. Remediation is available by upgrading affected packages to version 4.8.0.

CVE-2023-43648 at a Glance

CVE Identifier CVE-2023-43648
GHSA Identifier GHSA-hmqj-gv2m-hq55
Severity MODERATE
CVSS v3.1 Base Score 4.9
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Baserproject/basercms
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 4.9

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N).

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

How to Fix CVE-2023-43648

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

baserproject/basercms fixed: 4.8.0 
Upgrade baserproject/basercms to 4.8.0
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 baserproject/basercms

How to Check if You Are Affected

To determine whether your application is affected by CVE-2023-43648, inspect your project dependencies for Baserproject/basercms:

inspect dependencies for baserproject/basercms

Analyze the terminal output to locate any version of Baserproject/basercms in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.8.0), 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-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Baserproject/basercms, 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

There is a Directory Traversal Vulnerability in Form submission data management Feature to baserCMS. This is a vulnerability that needs to be addressed when the management system is used by an unspecified number of users. If you are eligible, please update to the new version as soon as possible. ### Target baserCMS 4.7.8 and earlier versions ### Vulnerability There is a possibility that information on the server may be obtained by a user who is logged in to the management screen. ### Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN_45547161 ### Credits Shiga Takuma@BroadBand Security, Inc

CVE-2023-43648 Affected Baserproject/basercms Versions

1 component(s)
Fixed Versions:
4.8.0
Product / Package Ecosystem Affected Versions Fixed Version
baserproject/basercms
 Packagist
< 4.8.0
4.8.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/baserproject/basercms/security/advisories/GHSA-hmqj-gv2m-hq55
NVD — CVE-2023-43648 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-43648
Security Fix Commit FIX COMMIT
https://github.com/baserproject/basercms/commit/7555a5cf0006755dc0223fffc2d882b50a97758b
Baserproject/basercms Security Information SECURITY
https://basercms.net/security/JVN_81174674
Baserproject/basercms Source Repository REPOSITORY
https://github.com/baserproject/basercms

Frequently Asked Questions

What is CVE-2023-43648?
CVE-2023-43648 is a security vulnerability in Baserproject/basercms involving baserCMS Directory Traversal vulnerability in Form submission data management Feature under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Baserproject/basercms versions are affected?
Affected versions include releases prior to 4.8.0 across affected packages: baserproject/basercms.
What version fixes CVE-2023-43648?
Upgrading to 4.8.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is baserproject/basercms affected?
Yes, baserproject/basercms is affected in releases prior to 4.8.0. Upgrade your dependency to 4.8.0 or later.
What is the CVSS score of CVE-2023-43648?
CVE-2023-43648 has a CVSS v3.1 base score of 4.9 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2023-43648?
CVE-2023-43648 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check Packagist dependencies for CVE-2023-43648?
Run the dependency tree command: 'inspect dependencies for baserproject/basercms'. 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-hmqj-gv2m-hq55",
  "modified" : "2023-10-26T20:47:57Z",
  "published" : "2023-10-26T20:47:57Z",
  "aliases" : [ "CVE-2023-43648" ],
  "summary" : "baserCMS Directory Traversal vulnerability in Form submission data management Feature",
  "details" : "There is a Directory Traversal Vulnerability in Form submission data management Feature to baserCMS.\n\nThis is a vulnerability that needs to be addressed when the management system is used by an unspecified number of users.\nIf you are eligible, please update to the new version as soon as possible.\n\n### Target\nbaserCMS 4.7.8 and earlier versions\n\n### Vulnerability\nThere is a possibility that information on the server may be obtained by a user who is logged in to the management screen.\n\n### Countermeasures\nUpdate to the latest version of baserCMS\n\nPlease refer to the following page to reference for more information.\nhttps://basercms.net/security/JVN_45547161\n\n### Credits\nShiga Takuma@BroadBand Security, Inc\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "baserproject/basercms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.8.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/baserproject/basercms/security/advisories/GHSA-hmqj-gv2m-hq55"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-43648"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/baserproject/basercms/commit/7555a5cf0006755dc0223fffc2d882b50a97758b"
  }, {
    "type" : "WEB",
    "url" : "https://basercms.net/security/JVN_81174674"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/baserproject/basercms"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-10-26T20:47:57Z",
    "nvd_published_at" : "2023-10-30T19:15:08Z"
  }
}