CVE-2023-2817: Craftcms/cms Stored Cross Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-7x94-jx75-3gh6
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CVSS 5.4
CWE-79
Published
Advisory Summary

CVE-2023-2817 is a MODERATE (CVSS 5.4) stored cross site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Craftcms/cms libraries in the Packagist ecosystem. The issue involves stored cross site scripting in craft cms. Remediation is available by upgrading affected packages to version 4.4.12.

CVE-2023-2817 at a Glance

CVE Identifier CVE-2023-2817
GHSA Identifier GHSA-7x94-jx75-3gh6
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Craftcms/cms
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-2023-2817

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

craftcms/cms fixed: 4.4.12 
Upgrade craftcms/cms to 4.4.12
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 craftcms/cms

How to Check if You Are Affected

To determine whether your application is affected by CVE-2023-2817, inspect your project dependencies for Craftcms/cms:

inspect dependencies for craftcms/cms

Analyze the terminal output to locate any version of Craftcms/cms in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.4.12), 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-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Craftcms/cms, 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

A post-authentication stored cross-site scripting vulnerability exists in Craft CMS versions <= 4.4.11. HTML, including script tags can be injected into field names which, when the field is added to a category or section, will trigger when users visit the Categories or Entries pages respectively. This issue was patched in version 4.4.12.

CVE-2023-2817 Affected Craftcms/cms Versions

1 component(s)
Fixed Versions:
4.4.12
Product / Package Ecosystem Affected Versions Fixed Version
craftcms/cms
 Packagist
≥ 4.0.0-RC1
< 4.4.12
4.4.12

References

NVD — CVE-2023-2817 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-2817
Security Fix Commit FIX COMMIT
https://github.com/craftcms/cms/commit/7655e1009ba6cdbfb230e6bb138b775b69fc7bcb
Craftcms/cms Source Repository REPOSITORY
https://github.com/craftcms/cms
Craftcms/cms Security Information SECURITY
https://www.tenable.com/security/research/tra-2023-20

Frequently Asked Questions

What is CVE-2023-2817?
CVE-2023-2817 is a security vulnerability in Craftcms/cms involving Stored cross site scripting in Craft CMS under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Craftcms/cms versions are affected?
Affected versions include releases prior to 4.4.12 across affected packages: craftcms/cms.
What version fixes CVE-2023-2817?
Upgrading to 4.4.12 (or the latest patched release for your respective branch) resolves the vulnerability.
Is craftcms/cms affected?
Yes, craftcms/cms is affected in releases prior to 4.4.12. Upgrade your dependency to 4.4.12 or later.
What is the CVSS score of CVE-2023-2817?
CVE-2023-2817 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-2023-2817?
CVE-2023-2817 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check Packagist dependencies for CVE-2023-2817?
Run the dependency tree command: 'inspect dependencies for craftcms/cms'. 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-7x94-jx75-3gh6",
  "modified" : "2023-06-02T22:17:57Z",
  "published" : "2023-05-26T18:30:21Z",
  "aliases" : [ "CVE-2023-2817" ],
  "summary" : "Stored cross site scripting in Craft CMS",
  "details" : "A post-authentication stored cross-site scripting vulnerability exists in Craft CMS versions <= 4.4.11. HTML, including script tags can be injected into field names which, when the field is added to a category or section, will trigger when users visit the Categories or Entries pages respectively. This issue was patched in version 4.4.12.",
  "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" : "craftcms/cms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0-RC1"
      }, {
        "fixed" : "4.4.12"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-2817"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/craftcms/cms/commit/7655e1009ba6cdbfb230e6bb138b775b69fc7bcb"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/craftcms/cms"
  }, {
    "type" : "WEB",
    "url" : "https://www.tenable.com/security/research/tra-2023-20"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-05-26T21:09:08Z",
    "nvd_published_at" : "2023-05-26T17:15:17Z"
  }
}