CVE-2021-24247Public exploitNetwork attack vector

Subscriber-level stored XSS via unsanitized settings fields

Published May 5, 2021 · Updated Aug 3, 2024

Stored XSS in Moove Agency Contact Form Check Tester 1.0.2 and earlier allows remote authenticated users to execute script in another user's browser. The settings page exposes controls to subscriber accounts and saves Field selector and Field value inputs without sanitizing them before rendering. A subscriber can store a payload that executes when another user opens the settings, granting the script that user's browser privileges.

CVSS severity5.4
Medium
EPSS probability4.68%
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 Moove Agency Contact Form Check Tester 1.0.2 and earlier allows remote authenticated users to execute script in another user's browser. The settings page exposes controls to subscriber accounts and saves Field selector and Field value inputs without sanitizing them before rendering. A subscriber can store a payload that executes when another user opens the settings, granting the script that user's browser privileges.

The record

CVE
CVE-2021-24247
Published
May 5, 2021
Updated
Aug 3, 2024
Vendor
Moove Agency
Product
Contact Form Check Tester
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 5, 2021CVE 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?

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

  1. Affected versionversion=1.0.2 <=1.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Moove Agency · Contact Form Check Testerversion=1.0.2 <=1.0.2

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

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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