CVE-2022-4068Public exploitNetwork attack vector

Administrator-session JavaScript execution via unsanitized username

Published Nov 20, 2022 · Updated Apr 25, 2025

Stored cross-site scripting in LibreNMS before 22.10.0 allows remote authenticated users to execute JavaScript in an administrator's browser. UserController::update fills the User model from all request fields rather than only validated fields, allowing a low-privilege account to store a crafted username. Execution requires an administrator to view the user overview; a still-valid session also lets a disabled user re-enable the account.

CVSS severity5.4
Medium
EPSS probability34.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in LibreNMS before 22.10.0 allows remote authenticated users to execute JavaScript in an administrator's browser. UserController::update fills the User model from all request fields rather than only validated fields, allowing a low-privilege account to store a crafted username. Execution requires an administrator to view the user overview; a still-valid session also lets a disabled user re-enable the account.

The record

CVE
CVE-2022-4068
Published
Nov 20, 2022
Updated
Apr 25, 2025
Vendor
LibreNMS
Product
LibreNMS
Classifications
CWE-79, CWE-915
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 20, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 25, 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=unspecified <22.10.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

LibreNMS · LibreNMSversion=unspecified <22.10.0

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
7.6huntr.devCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-915Improperly Controlled Modification of Dynamically-Determined Object Attributes

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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