GHSA-4h9w-7vfp-px8m CVE-2025-32378
Shopware default newsletter opt-in settings allow for mass sign-up abuse
- Severity
- 0.0 / 10
- Medium · CVSS 4.0
- Exploit chance (EPSS)
- 0.31%
- Chance of exploitation in the next 30 days. Higher than 23.94% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-1188 Initialization of a Resource with an Insecure Default
- CWE-799 Improper Control of Interaction Frequency
- Fix
- Available
- 2 packages have a fixed version
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.
Affected versions
Packagist
| Package | Vulnerable | Fixed in |
|---|---|---|
| shopware/core | >= 6.6.0.0-rc1, < 6.6.10.3 |
6.6.10.3 |
| shopware/core | >= 6.7.0.0-rc1, < 6.7.0.0-rc2 |
6.7.0.0-rc2 |
| shopware/core | < 6.5.8.17 |
6.5.8.17 |
| shopware/platform | >= 6.6.0.0-rc1, < 6.6.10.3 |
6.6.10.3 |
| shopware/platform | >= 6.7.0.0-rc1, < 6.7.0.0-rc2 |
6.7.0.0-rc2 |
| shopware/platform | < 6.5.8.17 |
6.5.8.17 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
shopware/core Packagist → 6.6.10.3
- composer
composer require shopware/core:^6.6.10.3
shopware/platform Packagist → 6.6.10.3
- composer
composer require shopware/platform:^6.6.10.3
Severity breakdown
CVSS 4.0 0.0
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
- Attack vector
- Network
- Attack complexity
- Low
- Attack requirements
- None
- Privileges required
- None
- User interaction
- None
- Confidentiality (vulnerable system)
- None
- Integrity (vulnerable system)
- None
- Availability (vulnerable system)
- None
- Confidentiality (subsequent systems)
- None
- Integrity (subsequent systems)
- Low
- Availability (subsequent systems)
- None
- Exploit maturity
- Unreported
CVSS 3.1 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Weakness
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.
CWE-799: Improper Control of Interaction Frequency
The product does not properly limit the number or frequency of interactions that it has with an actor, such as the number of incoming requests.
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-gq96-5pfx-f4vc Shopware: SSRF in Media External-Link Endpoint Bypasses IP Validation | Medium | Also affects shopware/core |
| GHSA-xvhc-gm7j-mhmc Shopware: Stored XSS via SVG file upload — no SVG sanitization | Medium | Also affects shopware/core |
| GHSA-9v5m-39wh-5chq Shopware: Unauthorized Payment Trigger for Foreign Orders via /store-api/handle-payment | Medium | Also affects shopware/core |
| GHSA-f8q6-3g5w-jjr6 Shopware: Admin API ACL Bypass in Order State Transition Endpoints | Medium | Also affects shopware/core |
| GHSA-4x3x-869w-xx3m Shopware SSO referer trust leading to an arbitrary redirect target | Medium | Also affects shopware/core |
| GHSA-7w52-7jvm-m9vw Shopware: Timing-attack on admin panel allowing enumeration of administrator usernames | Low | Also affects shopware/core |
| GHSA-v39m-97p8-gqg7 Shopware: Privilege escalation: non-admin user with user:create ACL can create admin accounts | Medium | Also affects shopware/core |
| GHSA-8v9p-g828-v98f Shopware: Admin Account Takeover via User Recovery Hash Exposure | Medium | Also affects shopware/core |
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