CVE-2025-27404: Icinga Web 2 DOM-based XSS 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 CSP in the application settings.
Classification
CVE ID: CVE-2025-27404
CVSS Base Severity: HIGH
CVSS Base Score: 7.7
CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
Problem Types
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Affected Products
Vendor: Icinga
Product: icingaweb2
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.05% (probability of being exploited)
EPSS Percentile: 16.31% (scored less or equal to compared to others)
EPSS Date: 2025-04-24 (when was this score calculated)
Stakeholder-Specific Vulnerability Categorization (SSVC)
SSVC Exploitation: none
SSVC Technical Impact: total
SSVC Automatable: false
References
https://nvd.nist.gov/vuln/detail/CVE-2025-27404https://github.com/Icinga/icingaweb2/security/advisories/GHSA-c6pg-h955-wf66
https://github.com/Icinga/icingaweb2/releases/tag/v2.11.5
https://github.com/Icinga/icingaweb2/releases/tag/v2.12.3