CVE-2025-27405

Icinga Web 2 has XSS in embedded content

7.7 HighFix available

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: High
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.33%Up 0.3 points since Mar 27, 2025

What each source reports

CVE List Score used 7.7

Icinga Web 2 has XSS in embedded content

Record: CVE-2025-27405
CVSS 3.1: 7.7 HighCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
Weakness: CWE-79
Updated: 2026-11-02

EUVDEUVD-2025-8216 7.7

Record: EUVD-2025-8216
CVSS 3.1: 7.7 HighCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
Updated: 2026-11-02

NVD 7.6

Record: CVE-2025-27405
CVSS 3.1: 7.6 HighCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

OSV 7.6

Icinga Web 2 has XSS in embedded content

Record: CVE-2025-27405
CVSS 3.1: 7.6 HighCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
Weakness: CWE-79
Updated: 2026-11-02

OSVDEBIAN-CVE-2025-27405 6.1

Record: DEBIAN-CVE-2025-27405
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2025-27405 7.6

Record: UBUNTU-CVE-2025-27405
CVSS 3.1: 7.6 HighCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated: 2026-11-02

OSVopenSUSE-SU-2025:14931-1 No score

icingacli-2.12.4-1.1 on GA media

These are all security issues fixed in the icingacli-2.12.4-1.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2025:14931-1
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`icingaweb2` Debian:12	All versions, plus listed versions 2.11.4-22.11.4-2+deb12u12.11.4-32.12.0-12.12.0-1~exp1 Show 10 moreShow less 2.12.1-12.12.2-12.12.4-12.12.4-22.12.5-12.12.5-1~exp12.12.6-12.13.0-12.13.1-12.14.0-1	None known
`icingaweb2` Debian:13	before 2.12.4-1	2.12.4-1
`icingaweb2` Debian:14	before 2.12.4-1	2.12.4-1
`icingaweb2` Ubuntu:16.04:LTS	All versions, plus listed versions 2.1.0-1ubuntu12.1.0-1ubuntu1.12.1.0-1ubuntu1.2	None known
`icingaweb2` Ubuntu:18.04:LTS	All versions, plus listed versions 2.4.1-12.4.1-1ubuntu0.1	None known
`icingaweb2` Ubuntu:20.04:LTS	All versions, plus listed versions 2.7.1-12.7.3-1	None known
`icingaweb2` Ubuntu:22.04:LTS	All versions, plus listed versions 2.8.2-22.9.3-12.9.4-12.9.5-1	None known
`icingaweb2` Ubuntu:24.04:LTS	All versions, plus listed versions 2.11.4-32.12.0-12.12.1-1	None known
`icingaweb2` Ubuntu:25.10	All versions, plus listed versions 2.12.2-12.12.4-12.12.4-2	None known
`icingaweb2` openSUSE:Tumbleweed From an advisory covering 4 CVEs	before 2.12.4-1.1	2.12.4-1.1

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 2, 2026	first indexed	CVE List, EUVD, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-27405 is a high vulnerability (CVSS 7.7) in Icinga Web 2, published March 26, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.33%, the 26th percentile. Fixed in icingaweb2 2.12.4-1.

References

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