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TI-2025-20418 Aliases CVE-2025-27609

Icinga Web 2 Vulnerable to Reflected XSS

Priority LOW 9CWE-79Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
None · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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 request that, once transmitted to a victim's Icinga Web, allows to embed arbitrary Javascript into it 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. Any modern browser with a working CORS implementation also sufficiently guards against the vulnerability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00253 16th percentileScored 2026-11-07
Fix Fixed icingaweb2 (Icinga): 2.11.5, 2.12.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Icingaicingaweb2before 2.11.5; 2.12.0 to before 2.12.32.11.5, 2.12.3Patch availableCNA
  • icingaweb2 VendorIcinga Affected before 2.11.5; 2.12.0 to before 2.12.3 Fixed in 2.11.5, 2.12.3 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:icinga:icinga_web_2:*:*:*:*:*:*:*:*before 2.11.5; 2.12.0 to before 2.12.3VulnerableIcinga
  • cpe:2.3:a:icinga:icinga_web_2:*:*:*:*:*:*:*:* Versions before 2.11.5; 2.12.0 to before 2.12.3 Vulnerable ·Icinga

Remediation

  • Fix · CNA icingaweb2 (Icinga) Fixed in 2.11.5, 2.12.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-27609

References

Advisory 1

Other 2

  • TI-2022-08531 Path traversal in Icinga Web 2 CVSS 3.1HIGH 7.5
  • TI-2022-08530 Arbitrary code execution for authenticated users in Icinga Web 2 CVSS 3.1HIGH 8.8
  • TI-2018-12897 Icinga Web 2 before 2.6.2 allows injection of PHP ini-file directives via vectors… CVSS 3.0CRITICAL 9.8
  • TI-2020-14912 Icinga Icinga Web2 2.0.0 through 2.6.4, 2.7.4 and 2.8.2 has a Directory Traversal… CVSS 3.1HIGH 7.5
  • TI-2025-20239 Icinga Web 2 DOM-based XSS vulnerability CVSS 3.1HIGH 7.7
  • TI-2025-20240 Icinga Web 2 has XSS in embedded content CVSS 3.1HIGH 7.7
See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences