CVE-2025-27405 - CVE House

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Status published High CVE-2025-27405

Icinga Web 2 has XSS in embedded content

7.7 CVSS

Vulnerability Description

Icinga Web 2 is an open source monitoring web interface, framework and command-line interface. A vulnerability in versions prior to 2.11.5 and 2.12.13 allows an attacker to craft a URL that, once visited by any user, allows to embed arbitrary Javascript into Icinga Web and to act on behalf of that user. This issue has been resolved in versions 2.11.5 and 2.12.3 of Icinga Web 2. As a workaround, those who have Icinga Web 2.12.2 may enable a content security policy in the application settings.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from Icinga

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Icinga 2 signals sent as root to processes based on PID file written by the Icinga 2 daemon user

Icinga 2 Denial of Service (DoS) By Dereferencing Invalid Reference

Icinga 2 API users could access restricted values in filter expressions

Icinga DB Web hidden/protected custom variables are prone to filter enumeration

Icinga DB Web Exposure of Sensitive Information to an Unauthorized Actor vulnerability

Affected Vendor

Icinga

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Affected Software

icingaweb2

Vulnerable Versions:

< 2.11.5, >= 2.12.0, < 2.12.3

Timeline

Official Publish: March 26th, 2025

Last Modified: March 26th, 2025

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1189 Drive-by Compromise

T1059.007 JavaScript

T1539 Steal Web Session Cookie

T1213 Data from Information Repositories

T1567 Exfiltration Over Web Service

T1491.001 Defacement