Overview
A stored cross-site scripting (XSS) vulnerability has been discovered in LogStare Collector, identified as CVE-2025-61949. This vulnerability resides in the UserManagement functionality. If maliciously crafted user information is stored within LogStare Collector, an attacker can execute arbitrary scripts on the web browser of any user who logs into the product’s management page. This can lead to account compromise, data theft, or other malicious activities.
Technical Details
The vulnerability stems from insufficient input sanitization when processing user-provided data within the UserManagement section of LogStare Collector. Specifically, fields such as username, display name, or other user profile information are not properly encoded before being stored in the database. When this data is subsequently retrieved and displayed within the administrative interface, the injected script is executed in the context of the administrator’s browser session.
Attackers can exploit this by crafting a malicious payload (e.g., a JavaScript snippet) and injecting it into a user profile field. When an administrator logs in and views the user management section, the injected script will execute.
CVSS Analysis
At the time of this writing, the Common Vulnerability Scoring System (CVSS) score for CVE-2025-61949 is listed as N/A. However, due to the potential impact of stored XSS, it is crucial to treat this vulnerability with high priority. While an official score is pending, stored XSS vulnerabilities generally receive a CVSS score in the 7.0-9.0 range, indicating High severity, depending on the attack complexity, scope, and impact.
Possible Impact
Successful exploitation of this stored XSS vulnerability could have severe consequences, including:
- Account Compromise: An attacker could potentially steal administrator credentials and gain full control over the LogStare Collector instance.
- Data Theft: Sensitive data collected by LogStare Collector could be exfiltrated.
- Malware Distribution: The attacker could inject malicious scripts to redirect users to phishing sites or distribute malware.
- Defacement: The attacker could modify the web interface of LogStare Collector, causing disruption and reputational damage.
Mitigation and Patch Steps
To mitigate the risk of CVE-2025-61949, the following steps are highly recommended:
- Apply the Patch: LogStare has likely released a patch or update to address this vulnerability. Visit the official LogStare website and download and install the latest version of LogStare Collector. Consult the LogStare security advisory for specific instructions.
- Input Validation: Ensure rigorous input validation and output encoding are implemented across all user input fields within LogStare Collector. This will prevent malicious scripts from being stored and executed. (This is a general recommendation for the future but should have been addressed in the patch).
- Web Application Firewall (WAF): Consider implementing a Web Application Firewall (WAF) to detect and block XSS attacks. Configure the WAF to specifically inspect and filter user input related to the UserManagement functionality.
- Principle of Least Privilege: Grant users only the necessary permissions required to perform their tasks. Avoid assigning unnecessary administrative privileges.
References
JVN#77560819 – Japan Vulnerability Notes
LogStare Vulnerability Advisory 2025-001
