CVE-2021-24926Public exploitNetwork attack vector

Reflected XSS via unescaped domain parameter

Published Feb 1, 2022 · Updated Aug 3, 2024

Reflected XSS in Domain Check before 1.0.17 allows remote authenticated users to execute script via the domain parameter. The Domain Check Profile handler places the query value into the settings page without sanitization or output escaping, so HTML and JavaScript are interpreted by the browser. An authenticated session and navigation to a crafted profile-page URL are required; successful exploitation runs attacker-supplied code in that browser context.

CVSS severity6.1
Medium
EPSS probability12.86%
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 Domain Check before 1.0.17 allows remote authenticated users to execute script via the domain parameter. The Domain Check Profile handler places the query value into the settings page without sanitization or output escaping, so HTML and JavaScript are interpreted by the browser. An authenticated session and navigation to a crafted profile-page URL are required; successful exploitation runs attacker-supplied code in that browser context.

The record

CVE
CVE-2021-24926
Published
Feb 1, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 1, 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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 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')

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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