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CVE-2024-47090: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Nagvis Nagvis

Medium
VulnerabilityCVE-2024-47090cvecve-2024-47090cwe-79
Published: Tue May 27 2025 (05/27/2025, 07:02:53 UTC)
Source: CVE Database V5
Vendor/Project: Nagvis
Product: Nagvis

Description

Improper neutralization of input in Nagvis before version 1.9.47 which can lead to XSS

AI-Powered Analysis

AILast updated: 07/06/2025, 04:11:38 UTC

Technical Analysis

CVE-2024-47090 is a medium-severity vulnerability classified under CWE-79, which pertains to improper neutralization of input during web page generation, commonly known as Cross-site Scripting (XSS). This vulnerability affects Nagvis, a popular open-source visualization tool used for network and infrastructure monitoring, specifically versions before 1.9.47, including version 1.9.0. The flaw arises because Nagvis does not properly sanitize or encode user-supplied input before rendering it on web pages. As a result, an attacker can inject malicious scripts that execute in the context of the victim's browser when viewing affected Nagvis pages. The CVSS 4.0 vector indicates the attack can be performed remotely over the network (AV:N) with low attack complexity (AC:L), requiring low privileges (PR:L) and some user interaction (UI:P). The impact on confidentiality and integrity is low, with no impact on availability. The vulnerability does not require authentication but does require some user interaction, such as a user clicking a crafted link or viewing a maliciously crafted page. Although no known exploits are currently in the wild, the presence of this vulnerability in monitoring infrastructure visualization software is concerning because it could be leveraged to steal session cookies, perform actions on behalf of legitimate users, or conduct phishing attacks within an organization's network monitoring environment. Given that Nagvis is often deployed in enterprise and service provider environments to visualize network status, exploitation could undermine trust in monitoring data or lead to further lateral movement within networks.

Potential Impact

For European organizations, the impact of CVE-2024-47090 can be significant in environments where Nagvis is used to monitor critical network infrastructure. Successful exploitation could allow attackers to execute arbitrary scripts in the context of users with access to Nagvis dashboards, potentially leading to session hijacking, credential theft, or injection of misleading monitoring data. This could disrupt incident response processes or delay detection of real network issues. Since Nagvis is commonly used by network operations centers (NOCs) and managed service providers, the vulnerability could affect multiple sectors including telecommunications, finance, energy, and government agencies across Europe. The medium severity rating reflects moderate risk, but the potential for exploitation in trusted internal environments elevates concern. Additionally, attackers could use this vulnerability as a foothold to escalate privileges or move laterally within networks, especially if combined with other vulnerabilities or misconfigurations. The requirement for user interaction means social engineering or phishing campaigns might be used to trigger the exploit, which is a common attack vector in targeted campaigns against European enterprises.

Mitigation Recommendations

To mitigate CVE-2024-47090, European organizations should prioritize upgrading Nagvis installations to version 1.9.47 or later, where the vulnerability has been addressed. If immediate upgrading is not feasible, organizations should implement strict input validation and output encoding on any user-supplied data rendered by Nagvis, potentially through web application firewalls (WAFs) configured to detect and block XSS payloads targeting Nagvis endpoints. Network segmentation should be enforced to restrict access to Nagvis dashboards only to trusted users and devices. Multi-factor authentication (MFA) should be enabled for Nagvis user accounts to reduce the risk of session hijacking. Additionally, organizations should educate users about the risks of clicking untrusted links or interacting with suspicious content within the monitoring environment. Regular monitoring and logging of Nagvis access and user activities can help detect anomalous behavior indicative of exploitation attempts. Finally, security teams should review and harden the overall security posture of monitoring infrastructure, ensuring that Nagvis is deployed behind secure reverse proxies with HTTPS enforced and that session management follows best practices.

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Technical Details

Data Version
5.1
Assigner Short Name
Checkmk
Date Reserved
2024-09-18T11:38:53.583Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6835ae13182aa0cae20f9cf4

Added to database: 5/27/2025, 12:20:35 PM

Last enriched: 7/6/2025, 4:11:38 AM

Last updated: 8/9/2025, 12:29:57 AM

Views: 15

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