CVE-2024-2020Network attack vector

Unauthenticated stored XSS via unescaped form-page href

Published Mar 13, 2024 · Updated Apr 8, 2026

Stored XSS in CodePeople Calculated Fields Form Professional 5.1.56 and earlier allows remote attackers to inject scripts via form-page href. The form-page handler stores the untrusted href value and later emits it without sufficient sanitization or output escaping. Professional or higher editions are required, and the payload runs when a user opens the injected page.

CVSS severity7.2
High
EPSS probability0.58%
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 CodePeople Calculated Fields Form Professional 5.1.56 and earlier allows remote attackers to inject scripts via form-page href. The form-page handler stores the untrusted href value and later emits it without sufficient sanitization or output escaping. Professional or higher editions are required, and the payload runs when a user opens the injected page.

The record

CVE
CVE-2024-2020
Published
Mar 13, 2024
Updated
Apr 8, 2026
Vendor
CodePeople
Product
Calculated Fields Form
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record 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=0 <=5.1.56

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CodePeople · Calculated Fields Formversion=0 <=5.1.56

Published CVSS scores

7.2WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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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