Horizon Alert
Summary of the vulnerability and why it matters
This advisory concerns a vulnerability in Concrete CMS Community Store, an e-commerce add-on, where customer-provided order information is not properly secured. This could allow attackers to inject malicious code that executes within the sessions of site managers, potentially leading to unauthorized account creation or data theft. The main concern at this time is confirming if this specific add-on is in use and if it is exposed to the internet.
- Unsecured customer data input allows script injection.
- It could compromise manager accounts and sensitive data.
- Confirm relevance and exposure of the e-commerce add-on.
Attack Path
How an attacker could exploit the issue
An unauthenticated attacker can inject malicious scripts into customer-supplied order fields. When an administrator views these orders, the script executes within their session, potentially allowing the attacker to create new accounts or steal sensitive information.
- Unauthenticated access to checkout or admin views.
- Storing script payloads in order fields.
- Rogue account creation or data exfiltration.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability could allow unauthenticated attackers to inject malicious scripts into customer order details. When viewed by authenticated administrators, these scripts could execute within the administrator's session, potentially enabling the creation of unauthorized user accounts or the theft of displayed order information.
- Customer order data at risk.
- Scripts execute in admin sessions.
- Rogue accounts may be created.
Operational Fix
Recommended remediation, mitigation, and detection steps
Concrete CMS Community Store's checkout and admin views are vulnerable to stored cross-site scripting due to unescaped customer-supplied order fields. This allows unauthenticated attackers to inject script payloads into fields like billing name, email, or phone numbers, which can then execute within the sessions of authenticated managers. The immediate priority is to identify all instances of the affected software, confirm its exposure and business criticality, and then determine the accountable owner to plan remediation.
- Application owners should own the issue.
- Verify affected instances and exposure.
- Plan remediation based on business risk.
