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Vulnerability DatabaseCVE-2023-4981
CVE-2023-4981:
PHP vulnerability analysis and mitigation
Overview
CVE-2023-4981 is a Cross-site Scripting (XSS) vulnerability discovered in GitHub repository librenms/librenms prior to version 23.9.0. The vulnerability was disclosed and published on September 14, 2023, affecting the LibreNMS network monitoring system (NVD).
Technical details
The vulnerability is classified as a DOM-based Cross-site Scripting (XSS) issue with a CVSS v3.1 base score of 5.4 (Medium) according to NVD's assessment. The CVSS vector string is CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N, indicating that the vulnerability requires network access, low attack complexity, and low privileges, but user interaction is required (NVD).
Impact
The vulnerability could allow an attacker to execute malicious scripts in the context of the user's browser session, potentially leading to unauthorized access to sensitive information and cookie theft (NVD).
Mitigation and workarounds
The vulnerability has been patched in LibreNMS version 23.9.0. Users are advised to upgrade to this version or later. The fix involves properly escaping user input in the eventlog component using htmlspecialchars instead of addcslashes (GitHub).
Additional resources
Source: This report was generated using AI
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