CVE-2023-44763: Concrete5/concrete5 Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-wrp2-6v6j-hfmg
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CVSS 5.4
CWE-434 CWE-79
Published
Advisory Summary

CVE-2023-44763 is a MODERATE (CVSS 5.4) cross-site scripting vulnerability (CWE-434: Unrestricted Upload of File with Dangerous Type) affecting Concrete5/concrete5 libraries in the Packagist ecosystem. The issue involves concretecms vulnerable to stored cross-site scripting. Remediation is available in the latest vendor maintenance releases.

CVE-2023-44763 at a Glance

CVE Identifier CVE-2023-44763
GHSA Identifier GHSA-wrp2-6v6j-hfmg
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-434: Unrestricted Upload of File with Dangerous Type
Affected Product Concrete5/concrete5
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 5.4

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:R/S:C/C:L/I:L/A:N).

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

How to Fix CVE-2023-44763

To remediate this vulnerability, upgrade all affected Concrete5/concrete5 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

concrete5/concrete5 fixed: Latest secure release 
Upgrade concrete5/concrete5 to Latest secure release
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 concrete5/concrete5

How to Check if You Are Affected

To determine whether your application is affected by CVE-2023-44763, inspect your project dependencies for Concrete5/concrete5:

inspect dependencies for concrete5/concrete5

Analyze the terminal output to locate any version of Concrete5/concrete5 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), 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-434: Unrestricted Upload of File with Dangerous Type, where the product allows the upload or transfer of dangerous file types that are automatically processed within its environment. In Concrete5/concrete5, 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

Concrete CMS v9.2.1 is affected by Arbitrary File Upload vulnerability via the Thumbnail file upload, which allows Cross-Site Scripting (XSS).

CVE-2023-44763 Affected Concrete5/concrete5 Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
concrete5/concrete5
 Packagist
≤ 9.2.1

References

NVD — CVE-2023-44763 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-44763
Concrete5/concrete5 Source Repository REPOSITORY
https://github.com/concretecms/concretecms
Concrete5/concrete5 Source Repository REPOSITORY
https://github.com/sromanhu/ConcreteCMS-Arbitrary-file-upload-Thumbnail
web.archive.org/web/20231026034159/... WEB
https://web.archive.org/web/20231026034159/https://documentation.concretecms.org/user-guide/editors-reference/dashboard/system-and-maintenance/files/allowed-file-types
Concrete5/concrete5 Security Information SECURITY
https://www.concretecms.org/about/project-news/security/security-advisory-2023-10-25-concrete-cms-rejects-cve-2023-44763

Frequently Asked Questions

What is CVE-2023-44763?
CVE-2023-44763 is a security vulnerability in Concrete5/concrete5 involving ConcreteCMS vulnerable to Stored Cross-site Scripting under CWE-434: Unrestricted Upload of File with Dangerous Type.
Which Concrete5/concrete5 versions are affected?
Affected versions include releases prior to current release patches across affected packages: concrete5/concrete5.
What version fixes CVE-2023-44763?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is concrete5/concrete5 affected?
Yes, concrete5/concrete5 is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2023-44763?
CVE-2023-44763 has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2023-44763?
CVE-2023-44763 is classified under CWE-434: Unrestricted Upload of File with Dangerous Type (The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.).
How can I check Packagist dependencies for CVE-2023-44763?
Run the dependency tree command: 'inspect dependencies for concrete5/concrete5'. 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-wrp2-6v6j-hfmg",
  "modified" : "2023-10-13T20:14:38Z",
  "published" : "2023-10-10T12:32:12Z",
  "aliases" : [ "CVE-2023-44763" ],
  "summary" : "ConcreteCMS vulnerable to Stored Cross-site Scripting",
  "details" : "Concrete CMS v9.2.1 is affected by Arbitrary File Upload vulnerability via the Thumbnail file upload, which allows Cross-Site Scripting (XSS).",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "concrete5/concrete5"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "9.2.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-44763"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/concretecms/concretecms"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/sromanhu/ConcreteCMS-Arbitrary-file-upload-Thumbnail"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20231026034159/https://documentation.concretecms.org/user-guide/editors-reference/dashboard/system-and-maintenance/files/allowed-file-types"
  }, {
    "type" : "WEB",
    "url" : "https://www.concretecms.org/about/project-news/security/security-advisory-2023-10-25-concrete-cms-rejects-cve-2023-44763"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-434", "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-10-10T22:23:43Z",
    "nvd_published_at" : "2023-10-10T12:15:09Z"
  }
}