Horizon Alert
Summary of the vulnerability and why it matters
This critical vulnerability in GetSimple CMS allows unauthenticated access to password resets, potentially leading to administrator account takeover by predicting temporary passwords. Although no patch is currently available, the concern is confirming if this specific content management system is in use.
- Resetting passwords can be taken over.
- Impacts systems publicly accessible online.
- Confirm usage; assess relevance and exposure.
Attack Path
How an attacker could exploit the issue
An attacker can access the password reset feature of GetSimple CMS without logging in. After submitting a reset request for an existing user, the system creates a temporary password using a predictable method. The attacker can then repeatedly guess these temporary passwords until they gain access to an administrator account.
- Unauthenticated access to password reset.
- Predictable temporary password generation.
- Administrator account takeover.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability could allow an attacker to gain unauthorized access to administrator accounts on GetSimple CMS by predicting temporary passwords. This occurs when a password reset request is submitted for an existing user, and the application generates a new password based on a predictable seed, allowing an attacker to test potential passwords until the correct one is found.
- Administrator account takeover is at risk.
- Predictable password generation enables brute-forcing.
- Unauthorized access to site administration.
Operational Fix
Recommended remediation, mitigation, and detection steps
This vulnerability in GetSimple CMS CE affects the password reset functionality, potentially allowing unauthenticated attackers to take over administrator accounts. Responsibility for addressing this likely falls to the application owners and potentially the platform or infrastructure teams managing the CMS deployment. The immediate first step should be to identify all instances of GetSimple CMS CE, assess their reachability and business criticality, and locate the accountable owner for each instance to plan a risk-based remediation strategy.
- Application owners should address this.
- Verify affected instances and their exposure.
- Plan remediation based on business risk.
