CVE-2024-12427Network attack vector

Unauthenticated image upload via unchecked AJAX action

Published Jan 16, 2025 · Updated Apr 8, 2026

Missing authorization in Mondula GmbH Multi Step Form 1.7.23 and earlier allows remote attackers to upload image files over the network. The fw_upload_file AJAX handler accepts uploads without checking whether the requester has a permitted WordPress capability. No account or user interaction is required, but accepted file types are limited, so the reported impact is unauthorized image placement rather than code execution.

CVSS severity5.3
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Mondula GmbH Multi Step Form 1.7.23 and earlier allows remote attackers to upload image files over the network. The fw_upload_file AJAX handler accepts uploads without checking whether the requester has a permitted WordPress capability. No account or user interaction is required, but accepted file types are limited, so the reported impact is unauthorized image placement rather than code execution.

The record

CVE
CVE-2024-12427
Published
Jan 16, 2025
Updated
Apr 8, 2026
Vendor
Mondula GmbH
Product
Multi Step Form
Classifications
CWE-862, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 16, 2025CVE 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 <=1.7.23

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mondula GmbH · Multi Step Formversion=0 <=1.7.23

Published CVSS scores

5.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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 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-862Missing Authorization
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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