Cyber Resilience

CVE-2024-24026

Critical

Published: 08 February 2024

Published
08 February 2024
Modified
24 April 2025
KEV Added
Patch
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0010 27.0th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-24026 is a critical-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Xxyopen Novel-Plus. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 27.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

An arbitrary File upload vulnerability exists in Novel-Plus v4.3.0-RC1 and prior versions at com.java2nb.system.controller.SysUserController: uploadImg(). An attacker can pass in specially crafted filename parameter to perform arbitrary File download.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1505.003 Web Shell Persistence
Adversaries may backdoor web servers with web shells to establish persistent access to systems.
Why these techniques?

Arbitrary file upload vulnerability in a public-facing web application (Novel-Plus SysUserController) enables exploitation of public-facing application (T1190) and facilitates deployment of web shells via uploaded malicious files like JSP shells (T1505.003).

Affected Assets

xxyopen
novel-plus
4.3.0 · ≤ 4.2.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-434

Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.

addresses: CWE-434

Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.

addresses: CWE-434

Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.

addresses: CWE-434

Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.

References