CVE-2025-55296

Name: CVE-2025-55296
Creator: NVD / NIST
Published: 2025-08-18T18:15:39.81+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.82%

Last modified Jun 17, 2026

CVE-2025-55296 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. librenms is a community-based GPL-licensed network monitoring system. A stored Cross-Site Scripting (XSS) vulnerability exists in LibreNMS (<= 25.6.0) in the Alert Template creation feature. EPSS estimates a 0.82% chance of exploitation in the next 30 days.

Description

librenms is a community-based GPL-licensed network monitoring system. A stored Cross-Site Scripting (XSS) vulnerability exists in LibreNMS (<= 25.6.0) in the Alert Template creation feature. This allows a user with the admin role to inject malicious JavaScript, which will be executed when the template is rendered, potentially compromising other admin accounts. This vulnerability is fixed in 25.8.0.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.82%

52.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Librenms	Librenms	< 25.8.0

References

https://github.com/librenms/librenms/commit/8ade3d827d317f5ac4b336617aafff865f825958Patch
https://github.com/librenms/librenms/security/advisories/GHSA-vxq6-8cwm-wj99Exploit, Vendor Advisory

Timeline

Published: Aug 18, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-55296?

How severe is CVE-2025-55296?

CVE-2025-55296 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.82% probability of exploitation in the next 30 days.

How do I fix CVE-2025-55296?

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-2025-55296?

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

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Source: NVD / NIST