CVE-2024-37764Public exploitNetwork attack vector

Stored script execution via unsanitized form properties

Published Jul 1, 2024 · Updated Aug 2, 2024

Stored cross-site scripting in MachForm 19 and earlier allows remote authenticated users to execute JavaScript in another user's browser. The save_form.php handler stores fp[name], fp[description], and fp[success_message] values without sanitizing embedded script markup. A signed-in form editor must save the payload, which executes with the application's browser origin when another user later edits the affected form.

CVSS severity5.4
Medium
EPSS probability0.59%
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 MachForm 19 and earlier allows remote authenticated users to execute JavaScript in another user's browser. The save_form.php handler stores fp[name], fp[description], and fp[success_message] values without sanitizing embedded script markup. A signed-in form editor must save the payload, which executes with the application's browser origin when another user later edits the affected form.

The record

CVE
CVE-2024-37764
Published
Jul 1, 2024
Updated
Aug 2, 2024
Vendor
Laymance Technologies LLC
Product
MachForm
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=0 <=19

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Laymance Technologies LLC · MachFormversion=0 <=19

Published CVSS scores

5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/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.

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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
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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