CVE-2025-55296

LibreNMS allows stored XSS in Alert Template name field

CVSS 5.5 MEDIUMEPSS 0.8%CWE-79

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.

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

Affected products

librenms · librenms

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References

https://github.com/librenms/librenms/commit/8ade3d827d317f5ac4b336617aafff865f825958 https://github.com/librenms/librenms/security/advisories/GHSA-vxq6-8cwm-wj99