Overview
CVE-2025-13871 describes a Cross-Site Request Forgery (CSRF) vulnerability found in the resource-management feature of ObjectPlanet Opinio 7.26 rev12562. This vulnerability allows an attacker to trick a logged-in user into unintentionally uploading files on their behalf. Subsequently, the attacker can access these uploaded files without requiring authentication, potentially leading to sensitive data exposure or system compromise.
Technical Details
The vulnerability lies in the lack of proper CSRF protection within the file upload functionality of Opinio’s resource management feature. An attacker can craft a malicious HTML page containing a form that, when submitted by an authenticated Opinio user, triggers the file upload action. Because the request originates from the user’s authenticated session, Opinio processes it as a legitimate request, allowing the attacker to upload a file.
The vulnerability is exploited because Opinio 7.26 rev12562 does not implement sufficient checks (such as anti-CSRF tokens) to verify that the file upload request originated from a legitimate user action within the application. The subsequent unauthorized access is due to missing authentication requirements on accessing the uploaded files.
CVSS Analysis
As stated in the vulnerability report, the CVSS score and severity level are currently marked as N/A (Not Available). A comprehensive risk assessment is needed to determine the actual severity. Without an official CVSS score, a qualitative analysis suggests a moderate to high risk, depending on the sensitivity of data handled by the Opinio instance and the scope of file access granted by the vulnerability.
Possible Impact
The exploitation of CVE-2025-13871 can have significant consequences:
- Data Breach: Attackers could upload malicious files designed to extract sensitive information stored on the server or inject code into the application.
- System Compromise: Uploading and executing malicious files can lead to complete system compromise.
- Reputation Damage: A successful attack can damage the reputation of the organization using the vulnerable Opinio instance.
- Unauthorized Content: Attackers can upload inappropriate or illegal content, leading to legal repercussions for the organization.
Mitigation and Patch Steps
Until an official patch is released by ObjectPlanet, the following mitigation steps are recommended:
- Upgrade Opinio: Check the ObjectPlanet website for newer versions of Opinio and upgrade to the latest version if it addresses the vulnerability.
- Implement CSRF Protection: If possible, manually implement CSRF protection measures, such as adding anti-CSRF tokens to file upload forms and validating them on the server-side. This may require custom development.
- Restrict File Upload Access: Implement strict access control policies to limit who can upload and access files.
- Web Application Firewall (WAF): Deploy a Web Application Firewall (WAF) with rules designed to detect and block CSRF attacks.
- Monitor System Activity: Continuously monitor system logs for suspicious file upload activity.
