Cybersecurity Vulnerabilities

Urgent: High-Severity XSS Flaw Exposes Logpoint Users (CVE-2025-66359)

Overview

A critical Cross-Site Scripting (XSS) vulnerability, identified as CVE-2025-66359, has been discovered in Logpoint versions prior to 7.7.0. This vulnerability stems from insufficient input validation and a lack of proper output escaping in multiple Logpoint components. Successful exploitation could allow attackers to inject malicious scripts into the application, potentially leading to account compromise, data theft, and other malicious activities.

Technical Details

The vulnerability arises from Logpoint’s failure to adequately sanitize user-supplied input before incorporating it into web pages. Specifically, multiple components within Logpoint are susceptible to accepting and displaying unsanitized data. This allows an attacker to inject arbitrary JavaScript code, which will then be executed within the context of a user’s browser when they interact with the affected page. The lack of output escaping further exacerbates the issue, preventing browsers from effectively mitigating potential XSS attacks.

CVSS Analysis

This vulnerability has been assigned a CVSS score of 8.5 (HIGH). This high score reflects the potential for significant impact, including:

  • Account compromise: Attackers can steal user credentials.
  • Data theft: Sensitive information displayed within Logpoint could be exfiltrated.
  • Malware distribution: Malicious scripts could redirect users to websites hosting malware.
  • Defacement: The Logpoint interface could be defaced to display misleading or harmful content.

Possible Impact

The exploitation of this XSS vulnerability can have severe consequences for Logpoint users and the organizations that rely on it. An attacker could:

  • Gain unauthorized access to sensitive data, including logs, configurations, and user information.
  • Compromise the integrity of security monitoring processes.
  • Launch further attacks against other systems within the network.
  • Damage the reputation of the organization due to data breaches or security incidents.

Mitigation and Patch Steps

To address this vulnerability, it is strongly recommended to upgrade to Logpoint version 7.7.0 or later. This version includes fixes to address the insufficient input validation and output escaping issues. Follow these steps:

  1. Review the official Logpoint advisory: Carefully review the advisory provided by Logpoint for detailed instructions and any specific considerations for your environment.
  2. Backup your Logpoint instance: Before applying any updates, create a full backup of your Logpoint instance to ensure you can restore to a previous state if necessary.
  3. Apply the update: Follow the Logpoint upgrade procedures to update your instance to version 7.7.0 or later.
  4. Verify the fix: After the update, test the Logpoint functionality to confirm that the vulnerability has been successfully addressed. Specifically, test input fields that might have been vulnerable to XSS attacks.

If upgrading is not immediately feasible, consider implementing temporary workarounds, such as carefully sanitizing user input and implementing strict output encoding in your Logpoint configurations. However, these workarounds are not a substitute for upgrading to the patched version.

References

Cybersecurity specialist and founder of Gowri Shankar Infosec - a professional blog dedicated to sharing actionable insights on cybersecurity, data protection, server administration, and compliance frameworks including SOC 2, PCI DSS, and GDPR.

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