CVE-2022-24564Network attack vector

Stored XSS via unescaped custom attribute help text

Published Feb 21, 2022 · Updated Aug 3, 2024

Stored XSS in Checkmk 2.0.0 through 2.0.0p19 allows remote authenticated users to execute script in another user's browser. The custom user attribute editor stores Help Text as HTML and renders it without escaping when a user record is edited. User Management and Manage Custom Attributes rights are required to plant the payload, and another user must edit the affected account to trigger it.

CVSS severity5.2
Medium
EPSS probability0.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Checkmk 2.0.0 through 2.0.0p19 allows remote authenticated users to execute script in another user's browser. The custom user attribute editor stores Help Text as HTML and renders it without escaping when a user record is edited. User Management and Manage Custom Attributes rights are required to plant the payload, and another user must edit the affected account to trigger it.

The record

CVE
CVE-2022-24564
Published
Feb 21, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 21, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.1UbuntuCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.2Checkmk GmbHCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:H/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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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