CVE-2025-4015Network attack vector

Unauthenticated data disclosure via session list

Published Apr 28, 2025 · Updated Apr 28, 2025

Missing authentication in Novel-Plus allows remote attackers to read data returned by the SessionController list endpoint. The list function in novel-system/src/main/java/com/java2nb/system/controller/SessionController.java returns its response without enforcing authentication; public sources do not identify the response fields. No credentials or user interaction are required, and the documented consequence is limited to disclosure of data returned by that endpoint.

CVSS severity7.5
High
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Novel-Plus allows remote attackers to read data returned by the SessionController list endpoint. The list function in novel-system/src/main/java/com/java2nb/system/controller/SessionController.java returns its response without enforcing authentication; public sources do not identify the response fields. No credentials or user interaction are required, and the documented consequence is limited to disclosure of data returned by that endpoint.

The record

CVE
CVE-2025-4015
Published
Apr 28, 2025
Updated
Apr 28, 2025
Vendor
xxyopen
Product
Novel-Plus
Classifications
CWE-306, CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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?

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  1. Affected versionversion=0e156c04b4b7ce0563bef6c97af4476fcda8f160

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

xxyopen · Novel-Plusversion=0e156c04b4b7ce0563bef6c97af4476fcda8f160

Published CVSS scores

6.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.0VulDBAV:N/AC:L/Au:N/C:P/I:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CWE-287Improper Authentication
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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