CVE-2025-62365Public exploitNetwork attack vector

Reflected script execution via unsafe href scheme

Published Oct 13, 2025 · Updated Oct 13, 2025

Reflected XSS in LibreNMS before 25.7.0 allows remote attackers to execute script in a user's browser through a crafted project_issues value. The report_this function in includes/functions.php applies generic HTML entity encoding to project_issues before placing it in an href, so a javascript URI remains executable. Exploitation requires a user to follow the crafted request, after which script runs in that user's LibreNMS origin and can read or alter browser-accessible data.

CVSS severity6.1
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in LibreNMS before 25.7.0 allows remote attackers to execute script in a user's browser through a crafted project_issues value. The report_this function in includes/functions.php applies generic HTML entity encoding to project_issues before placing it in an href, so a javascript URI remains executable. Exploitation requires a user to follow the crafted request, after which script runs in that user's LibreNMS origin and can read or alter browser-accessible data.

The record

CVE
CVE-2025-62365
Published
Oct 13, 2025
Updated
Oct 13, 2025
Vendor
LibreNMS
Product
LibreNMS
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=< 25.7.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LibreNMS · LibreNMSversion=< 25.7.0

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.5GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P

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
Privilegesunauthenticated
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

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Your stack

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