CVE-2025-27404

Name: CVE-2025-27404
Creator: NVD / NIST
Published: 2025-03-26T15:16:14+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.52%

Last modified Jun 17, 2026

CVE-2025-27404 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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. EPSS estimates a 0.52% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.52%

40.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Icinga	Icinga Web 2	< 2.11.5
Icinga	Icinga Web 2	>= 2.12.0, < 2.12.3

References

https://github.com/Icinga/icingaweb2/releases/tag/v2.11.5Release Notes
https://github.com/Icinga/icingaweb2/releases/tag/v2.12.3Release Notes
https://github.com/Icinga/icingaweb2/security/advisories/GHSA-c6pg-h955-wf66Vendor Advisory

Timeline

Published: Mar 26, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-27404?

How severe is CVE-2025-27404?

CVE-2025-27404 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.

How do I fix CVE-2025-27404?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-27404?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST