CVE-2025-62412Public exploitNetwork attack vector

Admin-browser script execution via decoded rule names

Published Oct 16, 2025 · Updated Oct 16, 2025

Stored cross-site scripting in LibreNMS 25.8.0 allows remote authenticated users with administrator access to execute script in a browser. The alert-rule form applies strip_tags() to the name, but an XML character reference survives storage; Bootgrid later decodes it while rewriting an unescaped table cell. Administrator access is required to create or update the rule, and viewing the Alert Rules page triggers script execution in the affected admin browser.

CVSS severity4.8
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stored cross-site scripting in LibreNMS 25.8.0 allows remote authenticated users with administrator access to execute script in a browser. The alert-rule form applies strip_tags() to the name, but an XML character reference survives storage; Bootgrid later decodes it while rewriting an unescaped table cell. Administrator access is required to create or update the rule, and viewing the Alert Rules page triggers script execution in the affected admin browser.

The record

CVE
CVE-2025-62412
Published
Oct 16, 2025
Updated
Oct 16, 2025
Vendor
LibreNMS
Product
LibreNMS
Classifications
CWE-79, T1203
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 25.10.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

LibreNMS · LibreNMSversion=< 25.10.0

Published CVSS scores

3.8GitHubCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
4.8NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo