CVE-2024-24026Network attack vector

Unauthenticated file upload via crafted filename

Published Feb 8, 2024 · Updated Apr 24, 2025

Unrestricted file upload in Novel-Plus 4.3.0-RC1 and earlier allows remote attackers to place files through a crafted filename. The uploadImg method in SysUserController accepts the crafted filename, although the public record inconsistently describes the resulting operation as an arbitrary file download. No credentials or user interaction are required, but public sources do not establish the uploaded file's destination or whether server-side execution follows.

CVSS severity9.8
Critical
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in Novel-Plus 4.3.0-RC1 and earlier allows remote attackers to place files through a crafted filename. The uploadImg method in SysUserController accepts the crafted filename, although the public record inconsistently describes the resulting operation as an arbitrary file download. No credentials or user interaction are required, but public sources do not establish the uploaded file's destination or whether server-side execution follows.

The record

CVE
CVE-2024-24026
Published
Feb 8, 2024
Updated
Apr 24, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS: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.

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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-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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