CVE-2025-32378: Shopware/core Shopware Default Newsletter Opt-in Settings Vulnerability

LOW
Advisory Identifier: GHSA-4h9w-7vfp-px8m
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CVSS 5.3
CWE-1188 CWE-799
Published
Advisory Summary

CVE-2025-32378 is a LOW (CVSS 5.3) shopware default newsletter opt-in settings vulnerability (CWE-1188: Initialization of a Resource with an Insecure Default) affecting Shopware/core libraries in the Packagist ecosystem. The issue involves shopware default newsletter opt-in settings allow for mass sign-up abuse. Remediation is available by upgrading affected packages to version 6.6.10.3, 6.7.0.0-rc2, 6.5.8.17.

CVE-2025-32378 at a Glance

CVE Identifier CVE-2025-32378
GHSA Identifier GHSA-4h9w-7vfp-px8m
Severity LOW
CVSS v3.1 Base Score 5.3
CWE Classification CWE-1188: Initialization of a Resource with an Insecure Default
Affected Product Shopware/core
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 5.3

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:N/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 None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2025-32378

To remediate this vulnerability, upgrade all affected Shopware/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.

shopware/core fixed: 6.6.10.3 
Upgrade shopware/core to 6.6.10.3
shopware/platform fixed: 6.6.10.3 
Upgrade shopware/platform to 6.6.10.3
shopware/platform fixed: 6.7.0.0-rc2 
Upgrade shopware/platform to 6.7.0.0-rc2
shopware/core fixed: 6.7.0.0-rc2 
Upgrade shopware/core to 6.7.0.0-rc2
shopware/core fixed: 6.5.8.17 
Upgrade shopware/core to 6.5.8.17
shopware/platform fixed: 6.5.8.17 
Upgrade shopware/platform to 6.5.8.17
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/core

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-32378, inspect your project dependencies for Shopware/core:

inspect dependencies for shopware/core

Analyze the terminal output to locate any version of Shopware/core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 6.6.10.3), 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-1188: Initialization of a Resource with an Insecure Default, where the product initializes or sets a resource with a default that is intended to be changed by the product's installer, administrator, or maintainer, but the default is not secure. In Shopware/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

### Impact Currently the default settings for double-opt-in allow for mass unsolicited newsletter sign-ups without confirmation. Default settings are: Newsletter: Double Opt-in - active Newsletter: Double opt-in for registered customers - disabled Log-in & sign-up: Double opt-in on sign-up - disabled With these settings, anyone can register an account on the shop using any e-mail-address and then check the check-box in the account page to sign up for the newsletter. The recipient will receive two mails confirming registering and signing up for the newsletter, no confirmation link needed to be clicked for either. In the backend the recipient is set to “instantly active”. ### Patches Update to Shopware 6.6.10.3 or 6.5.8.17 ### Workarounds For older versions of 6.4, corresponding security measures are also available via a plugin. For the full range of functions, we recommend updating to the latest Shopware version.

CVE-2025-32378 Affected Shopware/core Versions

6 component(s)
Fixed Versions:
6.6.10.36.7.0.0-rc26.5.8.17
Product / Package Ecosystem Affected Versions Fixed Version
shopware/core
 Packagist
≥ 6.6.0.0-rc1
< 6.6.10.3
6.6.10.3
shopware/platform
 Packagist
≥ 6.6.0.0-rc1
< 6.6.10.3
6.6.10.3
shopware/platform
 Packagist
≥ 6.7.0.0-rc1
< 6.7.0.0-rc2
6.7.0.0-rc2
shopware/core
 Packagist
≥ 6.7.0.0-rc1
< 6.7.0.0-rc2
6.7.0.0-rc2
shopware/core
 Packagist
< 6.5.8.17
6.5.8.17
shopware/platform
 Packagist
< 6.5.8.17
6.5.8.17

References

GitHub Advisory / Wiki ADVISORY
https://github.com/shopware/shopware/security/advisories/GHSA-4h9w-7vfp-px8m
NVD — CVE-2025-32378 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-32378
Shopware/core Source Repository REPOSITORY
https://github.com/shopware/shopware

Frequently Asked Questions

What is CVE-2025-32378?
CVE-2025-32378 is a security vulnerability in Shopware/core involving Shopware default newsletter opt-in settings allow for mass sign-up abuse under CWE-1188: Initialization of a Resource with an Insecure Default.
Which Shopware/core versions are affected?
Affected versions include releases prior to 6.6.10.3, 6.7.0.0-rc2, 6.5.8.17 across affected packages: shopware/core, shopware/platform.
What version fixes CVE-2025-32378?
Upgrading to 6.6.10.3, 6.7.0.0-rc2, 6.5.8.17 (or the latest patched release for your respective branch) resolves the vulnerability.
Is shopware/core affected?
Yes, shopware/core is affected in releases prior to 6.6.10.3, 6.7.0.0-rc2, 6.5.8.17. Upgrade your dependency to 6.6.10.3, 6.7.0.0-rc2, 6.5.8.17 or later.
Is shopware/platform affected?
Yes, shopware/platform is affected in releases prior to 6.6.10.3, 6.7.0.0-rc2, 6.5.8.17. Upgrade your dependency to 6.6.10.3, 6.7.0.0-rc2, 6.5.8.17 or later.
What is the CVSS score of CVE-2025-32378?
CVE-2025-32378 has a CVSS v3.1 base score of 5.3 (LOW) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2025-32378?
CVE-2025-32378 is classified under CWE-1188: Initialization of a Resource with an Insecure Default (The product initializes or sets a resource with a default that is intended to be changed by the product's installer, administrator, or maintainer, but the default is not secure.).
How can I check Packagist dependencies for CVE-2025-32378?
Run the dependency tree command: 'inspect dependencies for shopware/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-4h9w-7vfp-px8m",
  "modified" : "2025-09-10T21:09:57Z",
  "published" : "2025-04-09T13:53:11Z",
  "aliases" : [ "CVE-2025-32378" ],
  "summary" : "Shopware default newsletter opt-in settings allow for mass sign-up abuse",
  "details" : "### Impact\n\nCurrently the default settings for double-opt-in allow for mass unsolicited newsletter sign-ups without confirmation.\n\nDefault settings are:\n\nNewsletter: Double Opt-in - active\n\nNewsletter: Double opt-in for registered customers - disabled\n\nLog-in & sign-up: Double opt-in on sign-up - disabled\n\nWith these settings, anyone can register an account on the shop using any e-mail-address and then check the check-box in the account page to sign up for the newsletter. The recipient will receive two mails confirming registering and signing up for the newsletter, no confirmation link needed to be clicked for either. In the backend the recipient is set to “instantly active”.\n\n### Patches\nUpdate to Shopware 6.6.10.3 or 6.5.8.17\n\n### Workarounds\nFor older versions of 6.4, corresponding security measures are also available via a plugin. For the full range of functions, we recommend updating to the latest Shopware version.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:U"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "shopware/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "6.6.0.0-rc1"
      }, {
        "fixed" : "6.6.10.3"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "shopware/platform"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "6.6.0.0-rc1"
      }, {
        "fixed" : "6.6.10.3"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "shopware/platform"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "6.7.0.0-rc1"
      }, {
        "fixed" : "6.7.0.0-rc2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "shopware/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "6.7.0.0-rc1"
      }, {
        "fixed" : "6.7.0.0-rc2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "shopware/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "6.5.8.17"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "shopware/platform"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "6.5.8.17"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/shopware/shopware/security/advisories/GHSA-4h9w-7vfp-px8m"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-32378"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/shopware/shopware"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1188", "CWE-799" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-04-09T13:53:11Z",
    "nvd_published_at" : "2025-04-09T16:15:25Z"
  }
}