Overview
CVE-2025-52669 identifies a vulnerability in Revive Adserver versions 5.5.2 and 6.0.1 and earlier, related to insecure design policies within the user management system. This flaw allows non-administrative users to access the contact names and email addresses of other users on the system. While this may not grant full administrative access, it represents a significant data exposure risk.
Technical Details
The vulnerability stems from insufficient access control checks in the user management interface. Specifically, the system fails to adequately restrict access to user details, allowing non-admin users to query and retrieve contact information of other users through the application’s interface or API endpoints. The underlying cause appears to be a missing or improperly implemented authorization mechanism that should have prevented this unauthorized data retrieval.
CVSS Analysis
Currently, the CVSS score for CVE-2025-52669 is marked as N/A. This is likely because the vulnerability report is recent and a formal scoring has not yet been assigned. However, given the potential for data exposure, it’s crucial to treat this as a medium-risk vulnerability until a formal CVSS score is available. The severity is also currently marked as N/A but should be considered at least Moderate.
Possible Impact
The exploitation of CVE-2025-52669 can lead to several negative consequences:
- Data Exposure: Unauthorized access to user contact information (names and email addresses).
- Phishing Attacks: Collected email addresses could be used for targeted phishing campaigns.
- Social Engineering: User names and email addresses can be used to craft social engineering attacks.
- Privacy Violations: The exposure of personal information violates user privacy and potentially relevant data protection regulations.
Mitigation and Patch Steps
Until an official patch is released, consider the following mitigation steps:
- Monitor User Activity: Closely monitor user activity logs for any suspicious attempts to access user profiles.
- Review Access Controls: Review existing access control configurations within Revive Adserver to identify any potential misconfigurations.
- Disable Unnecessary Features: Consider temporarily disabling non-essential features related to user management if possible.
- Apply Official Patch: The most critical step is to apply the official patch released by Revive Adserver as soon as it becomes available. Monitor the Revive Adserver website and security advisories for updates.
- Implement a Web Application Firewall (WAF): A WAF can help to detect and block malicious requests that attempt to exploit this vulnerability.
Once a patch is available, follow the official upgrade instructions provided by Revive Adserver.
