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Vulnerability details: VCID-cntm-etf9-kkbv
Vulnerability ID VCID-cntm-etf9-kkbv
Aliases CVE-2025-55296
GHSA-vxq6-8cwm-wj99
Summary 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.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00017 https://api.first.org/data/v1/epss?cve=CVE-2025-55296
cvssv3.1 5.5 https://github.com/librenms/librenms
generic_textual MODERATE https://github.com/librenms/librenms
cvssv3.1 5.5 https://github.com/librenms/librenms/commit/8ade3d827d317f5ac4b336617aafff865f825958
generic_textual MODERATE https://github.com/librenms/librenms/commit/8ade3d827d317f5ac4b336617aafff865f825958
ssvc Track https://github.com/librenms/librenms/commit/8ade3d827d317f5ac4b336617aafff865f825958
cvssv3.1 5.5 https://github.com/librenms/librenms/security/advisories/GHSA-vxq6-8cwm-wj99
generic_textual MODERATE https://github.com/librenms/librenms/security/advisories/GHSA-vxq6-8cwm-wj99
ssvc Track https://github.com/librenms/librenms/security/advisories/GHSA-vxq6-8cwm-wj99
cvssv3.1 5.5 https://nvd.nist.gov/vuln/detail/CVE-2025-55296
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2025-55296
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2025-55296
https://nvd.nist.gov/vuln/detail/CVE-2025-55296
8ade3d827d317f5ac4b336617aafff865f825958 https://github.com/librenms/librenms/commit/8ade3d827d317f5ac4b336617aafff865f825958
GHSA-vxq6-8cwm-wj99 https://github.com/advisories/GHSA-vxq6-8cwm-wj99
GHSA-vxq6-8cwm-wj99 https://github.com/librenms/librenms/security/advisories/GHSA-vxq6-8cwm-wj99
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N Found at https://github.com/librenms/librenms
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N Found at https://github.com/librenms/librenms/commit/8ade3d827d317f5ac4b336617aafff865f825958
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-08-18T17:37:45Z/ Found at https://github.com/librenms/librenms/commit/8ade3d827d317f5ac4b336617aafff865f825958
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N Found at https://github.com/librenms/librenms/security/advisories/GHSA-vxq6-8cwm-wj99
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-08-18T17:37:45Z/ Found at https://github.com/librenms/librenms/security/advisories/GHSA-vxq6-8cwm-wj99
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2025-55296
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.0455
EPSS Score 0.00017
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T17:14:56.688258+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2025/55xxx/CVE-2025-55296.json 38.6.0