Nagios XI versions prior to 2024R1.2.2Â contain a host header injection vulnerability. The application trusts the user-supplied HTTP Host header when constructing absolute URLs without sufficient validation. An unauthenticated, remote attacker can supply a crafted Host header to poison generated links or responses, which may facilitate phishing of credentials, account recovery link hijacking, and web cache poisoning.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.1, indicating it can be exploited remotely over the network with relatively low complexity though user interaction is required and does not require pre-existing privileges . The vulnerability impacts limited data confidentiality, limited integrity, for affected systems. Impacting 1 product from nagios organizations running these solutions should prioritize assessment and patching.
Reported in 2025, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2025-10-30T22:15:46.153
2025-11-06T16:35:11.600
Analyzed
CVSSv3.1: 6.1 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | nagios | nagios_xi | < 2024 | Yes |
| Application | nagios | nagios_xi | 2024 | Yes |
| Application | nagios | nagios_xi | 2024 | Yes |
| Application | nagios | nagios_xi | 2024 | Yes |
| Application | nagios | nagios_xi | 2024 | Yes |
| Application | nagios | nagios_xi | 2024 | Yes |
| Application | nagios | nagios_xi | 2024 | Yes |
| Application | nagios | nagios_xi | 2024 | Yes |
| Application | nagios | nagios_xi | 2024 | Yes |
| Application | nagios | nagios_xi | 2024 | Yes |
| Application | nagios | nagios_xi | 2024 | Yes |
| Application | nagios | nagios_xi | 2024 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For nagios's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.