CVE-2023-22734: Shopware/platform Shopware Has Improper Input Validation Vulnerability

MODERATE
Advisory Identifier: GHSA-46h7-vj7x-fxg2
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CVSS 4.3
CWE-20
Published
Advisory Summary

CVE-2023-22734 is a MODERATE (CVSS 4.3) shopware has improper input validation vulnerability (CWE-20: Improper Input Validation) affecting Shopware/platform libraries in the Packagist ecosystem. The issue involves shopware has improper input validation issue in newsletter subscription. Remediation is available by upgrading affected packages to version 6.4.18.1.

CVE-2023-22734 at a Glance

CVE Identifier CVE-2023-22734
GHSA Identifier GHSA-46h7-vj7x-fxg2
Severity MODERATE
CVSS v3.1 Base Score 4.3
CWE Classification CWE-20: Improper Input Validation
Affected Product Shopware/platform
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 4.3

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

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

How to Fix CVE-2023-22734

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

shopware/platform fixed: 6.4.18.1 
Upgrade shopware/platform to 6.4.18.1
shopware/core fixed: 6.4.18.1 
Upgrade shopware/core to 6.4.18.1
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 shopware/platform

How to Check if You Are Affected

To determine whether your application is affected by CVE-2023-22734, inspect your project dependencies for Shopware/platform:

inspect dependencies for shopware/platform

Analyze the terminal output to locate any version of Shopware/platform in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 6.4.18.1), 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-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In Shopware/platform, 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

### Impact The newsletter double opt-in validation was not checked properly, and it was possible to skip the complete double opt in process. ### Patches The problem has been fixed with 6.4.18.1 ### Workarounds For older versions of 6.1, 6.2, and 6.3, corresponding security measures are also available via a plugin. For the full range of functions, we recommend updating to the latest Shopware version. Or disable the newsletter registration completely. ### References https://docs.shopware.com/en/shopware-6-en/security-updates/security-update-01-2023?category=security-updates

CVE-2023-22734 Affected Shopware/platform Versions

2 component(s)
Fixed Versions:
6.4.18.1
Product / Package Ecosystem Affected Versions Fixed Version
shopware/platform
 Packagist
< 6.4.18.1
6.4.18.1
shopware/core
 Packagist
< 6.4.18.1
6.4.18.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/shopware/platform/security/advisories/GHSA-46h7-vj7x-fxg2
NVD — CVE-2023-22734 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-22734
Security Fix Commit FIX COMMIT
https://github.com/shopware/platform/commit/f5a95ee2bcf1e546878450963ef1d9886e59a620
Shopware/platform Security Information SECURITY
https://docs.shopware.com/en/shopware-6-en/security-updates/security-update-01-2023?category=security-updates
Shopware/platform Source Repository REPOSITORY
https://github.com/shopware/platform

Frequently Asked Questions

What is CVE-2023-22734?
CVE-2023-22734 is a security vulnerability in Shopware/platform involving Shopware has Improper Input Validation issue in newsletter subscription under CWE-20: Improper Input Validation.
Which Shopware/platform versions are affected?
Affected versions include releases prior to 6.4.18.1 across affected packages: shopware/platform, shopware/core.
What version fixes CVE-2023-22734?
Upgrading to 6.4.18.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is shopware/platform affected?
Yes, shopware/platform is affected in releases prior to 6.4.18.1. Upgrade your dependency to 6.4.18.1 or later.
Is shopware/core affected?
Yes, shopware/core is affected in releases prior to 6.4.18.1. Upgrade your dependency to 6.4.18.1 or later.
What is the CVSS score of CVE-2023-22734?
CVE-2023-22734 has a CVSS v3.1 base score of 4.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2023-22734?
CVE-2023-22734 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check Packagist dependencies for CVE-2023-22734?
Run the dependency tree command: 'inspect dependencies for shopware/platform'. 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-46h7-vj7x-fxg2",
  "modified" : "2023-01-20T23:18:41Z",
  "published" : "2023-01-20T23:18:41Z",
  "aliases" : [ "CVE-2023-22734" ],
  "summary" : "Shopware has Improper Input Validation issue in newsletter subscription",
  "details" : "### Impact\n\nThe newsletter double opt-in validation was not checked properly, and it was possible to skip the complete double opt in process.\n\n### Patches\nThe problem has been fixed with 6.4.18.1\n\n### Workarounds\nFor older versions of 6.1, 6.2, and 6.3, corresponding security measures are also available via a plugin. For the full range of functions, we recommend updating to the latest Shopware version. Or disable the newsletter registration completely.\n\n### References\n\nhttps://docs.shopware.com/en/shopware-6-en/security-updates/security-update-01-2023?category=security-updates\n\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "shopware/platform"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "6.4.18.1"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 6.4.18.0"
    }
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "shopware/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "6.4.18.1"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 6.4.18.0"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/shopware/platform/security/advisories/GHSA-46h7-vj7x-fxg2"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-22734"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/shopware/platform/commit/f5a95ee2bcf1e546878450963ef1d9886e59a620"
  }, {
    "type" : "WEB",
    "url" : "https://docs.shopware.com/en/shopware-6-en/security-updates/security-update-01-2023?category=security-updates"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/shopware/platform"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-01-20T23:18:41Z",
    "nvd_published_at" : "2023-01-17T22:15:00Z"
  }
}