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

Quick assessment

Affected
shopware shopware
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Shopware是德国Shopware公司的一套开源电子商务软件。 Shopware 6.6.10.3之前版本和6.5.8.17之前版本存在安全漏洞，该漏洞源于默认设置允许未经确认的批量新闻订阅。

AI Predicted 7.5 Difficulty: Trivial EPSS 0.30% · P21

Possible ATT&CK Techniques 1 AI

T1566.001 · Spearphishing Attachment
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I. Basic Information for CVE-2025-32378

Vulnerability Information
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Vulnerability Title
Shopware's default newsletter opt-in settings allow for mass sign-up abuse
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
交互频率的控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Shopware 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Shopware是德国Shopware公司的一套开源电子商务软件。 Shopware 6.6.10.3之前版本和6.5.8.17之前版本存在安全漏洞，该漏洞源于默认设置允许未经确认的批量新闻订阅。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
shopware shopware < 6.5.8.17 -

II. Public POCs for CVE-2025-32378

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III. Intelligence Information for CVE-2025-32378

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IV. Related Vulnerabilities

Same product: shopware
Same vendor: shopware
Same weakness: CWE-799

V. Comments for CVE-2025-32378

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