EUVD-2026-21907

| CVE-2026-2728 MEDIUM
2026-04-13 PRJBLK GHSA-rp7w-624x-95qv
4.6
CVSS 4.0
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CVSS Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
A
Scope
X

Lifecycle Timeline

2
Analysis Generated
Apr 13, 2026 - 11:32 vuln.today
CVSS Changed
Apr 13, 2026 - 11:22 NVD
4.6 (MEDIUM)

Tags

XSS

Description

LibreNMS versions before 26.3.0 are affected by an authenticated Cross-site Scripting vulnerability on the showconfig page. Successful exploitation requires administrative privileges. Exploitation could result in XSS attacks being performed against other users with access to the page.

Analysis

Cross-site Scripting (XSS) in LibreNMS versions before 26.3.0 allows authenticated administrators to inject malicious scripts on the showconfig page, enabling attacks against other authorized users. The vulnerability requires high administrative privileges and user interaction (clicking a malicious link) to execute, resulting in integrity impact to other users' sessions. …

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Priority Score

43
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +23
POC: +20

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EUVD-2026-21907 vulnerability details – vuln.today
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