Medium severity · published Aug 18, 2025
CVE-2025-55296
LibreNMS allows stored XSS in Alert Template name field
5.4
CVSS
14.8%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)14.8% · higher than 97% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
librenms · librenms
< 25.8.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-55296
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-55296
Patch
https://github.com/librenms/librenms/commit/8ade3d827d317f5ac4b336617aafff865f825958
Exploit
https://github.com/librenms/librenms/security/advisories/GHSA-vxq6-8cwm-wj99
More from librenms
9.8
CVE-2026-86426
LibreNMS before 26.8.0 Authentication Bypass via API Token Type Confusion
9.8
CVE-2022-4070
Insufficient Session Expiration in GitHub repository librenms/librenms prior to 22.10.0
9.8
CVE-2022-29712
LibreNMS v22.3.0 was discovered to contain multiple command injection vulnerabilities via the service_ip, hostname, and service_param parameters
9.8
CVE-2021-44278
Librenms 21.11.0 is affected by a path manipulation vulnerability in includes/html/pages/device/showconfig.inc.php
9.8
CVE-2019-10665
An issue was discovered in LibreNMS through 1.47