CVE-2024-37555Network attack vector

Arbitrary file upload via cross-site request forgery

Published Jul 9, 2024 · Updated Apr 28, 2026

CSRF in ZealousWeb Generate PDF using Contact Form 7 4.1.2 and earlier allows remote attackers to upload arbitrary files. Patchstack identifies a forged privileged-user action and dangerous file upload, but neither it nor the vendor names the affected handler or failed validation. Successful exploitation requires a privileged administrator to perform the forged action while authenticated; the established consequence is storage of an unrestricted file.

CVSS severity9.8
Critical
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSRF in ZealousWeb Generate PDF using Contact Form 7 4.1.2 and earlier allows remote attackers to upload arbitrary files. Patchstack identifies a forged privileged-user action and dangerous file upload, but neither it nor the vendor names the affected handler or failed validation. Successful exploitation requires a privileged administrator to perform the forged action while authenticated; the established consequence is storage of an unrestricted file.

The record

CVE
CVE-2024-37555
Published
Jul 9, 2024
Updated
Apr 28, 2026
Vendor
ZealousWeb
Product
Generate PDF using Contact Form 7
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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 <=4.0.6
  2. Affected versionversion=0 <=4.1.2 changes=[{"at":"4.1.3","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ZealousWeb · Generate PDF using Contact Form 7version=0 <=4.0.6; version=0 <=4.1.2 changes=[{"at":"4.1.3","status":"unaffected"}]

Published CVSS scores

9.1PatchstackCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

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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