CVE-2025-32378
Shopware default newsletter opt-in settings allow for mass sign-up abuse
Description
### 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.
How to fix CVE-2025-32378
To remediate CVE-2025-32378, upgrade the affected package to a fixed version below.
- —upgrade to 6.6.10.3 or later
- —upgrade to 6.6.10.3 or later
Is CVE-2025-32378 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 6.6.0.0-rc1, < 6.6.10.3
- >= 6.6.0.0-rc1, < 6.6.10.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | 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 |
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |