Overview
WeGIA, a web management platform utilized by various charitable institutions, has been found to possess a severe vulnerability that could potentially expose these organizations to significant cybersecurity risks. This vulnerability, identified as CVE-2025-53530, allows attackers to send excessively long HTTP GET requests, leading to high system resource consumption and potential Denial of Service (DoS) attacks.
Vulnerability Summary
CVE ID: CVE-2025-53530
Severity: High, CVSS 7.5
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise, potential data leakage, and system downtime due to DoS attacks
Affected Products
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Product | Affected Versions
WeGIA Server | Versions prior to 3.3.0
How the Exploit Works
The vulnerability arises from insufficient input validation on the WeGIA server. Specifically, the server does not properly validate the length of the ‘errorstr’ parameter in HTTP GET requests. When an excessively long request is received (up to 8,142 characters), the server attempts to process it, leading to significant resource consumption, increased latency, timeouts, and read errors. Ultimately, the server becomes susceptible to DoS attacks, where an attacker could effectively overwhelm and disable the server by repeatedly sending such long requests.
Conceptual Example Code
An attacker might exploit the vulnerability by sending an HTTP GET request similar to the below:
GET /vulnerable/path?errorstr=[8,142 characters of data] HTTP/1.1
Host: target.example.comThe above request would cause the server to consume excessive resources, resulting in latency, timeouts, and potentially a DoS situation.
Mitigation Guidance
Users are advised to apply the vendor patch immediately, upgrading their WeGIA server to version 3.3.0 or later. In situations where immediate patching is not feasible, users can employ a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure to detect and block excessively long HTTP GET requests.
