Overview
The world of cybersecurity is constantly evolving, with new vulnerabilities cropping up now and then. One such vulnerability observed recently is CVE-2025-27217, a severe instance of Server-Side Request Forgery (SSRF) in the UISP Application. This vulnerability has the potential to allow a malicious actor, given certain permissions, to make requests outside the intended application scope.
This vulnerability is of utmost significance because it can potentially lead to system compromise or data leakage, posing a significant threat to any organization that fails to address it promptly. Organizations relying on UISP Application are therefore advised to take immediate action to mitigate the risk.
Vulnerability Summary
CVE ID: CVE-2025-27217
Severity: Critical (9.1 CVSS Score)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
UISP Application | All versions prior to patch
How the Exploit Works
The SSRF vulnerability in the UISP Application works by exploiting the ability of the web application to send requests from the server to any chosen destination. By leveraging this vulnerability, an attacker with certain permissions could trick the server into making unintended requests. This could potentially lead to unauthorized actions or data access outside of the UISP Application’s scope.
Conceptual Example Code
Below is a conceptual example of how the vulnerability might be exploited. In this example, a malicious HTTP request is sent, tricking the server into making a request to an unintended destination.
POST /vulnerable/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "malicious_payload": "http://unintended-destination.com" }In this scenario, the server is fooled into sending a request to “http://unintended-destination.com”, potentially revealing sensitive information or executing unauthorized commands.
The severity of this vulnerability underlines the importance of immediate action. As mitigation guidance, it is recommended to apply the vendor patch or use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation.