How severe is CVE-2025-4015?

CVE-2025-4015 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-4015 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-4015?

CVE-2025-4015 affects Xxyopen Novel-plus. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-4015?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-4015 have an EU (EUVD) identifier?

Yes. CVE-2025-4015 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12561.

When was CVE-2025-4015 published?

CVE-2025-4015 was published on 2025-04-28 and last updated on 2026-06-17.

CVE-2025-4015

CVE-2025-4015 is a medium-severity vulnerability in Xxyopen Novel-plus with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
CVSS v4: 6.9
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-12561
Weakness: CWE-306
Affected product: Xxyopen Novel-plus
Published: 2025-04-28
Last modified: 2026-06-17

Description

A vulnerability was found in 20120630 Novel-Plus up to 0e156c04b4b7ce0563bef6c97af4476fcda8f160. It has been rated as critical. Affected by this issue is the function list of the file novel-system/src/main/java/com/java2nb/system/controller/SessionController.java. The manipulation leads to missing authentication. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2025-4015?: A vulnerability was found in 20120630 Novel-Plus up to 0e156c04b4b7ce0563bef6c97af4476fcda8f160. It has been rated as critical. Affected by this issue is the function list of the file novel-system/src/main/java/com/java2nb/system/controller/SessionController.java. The manipulation leads to missing authentication. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2025-4015?: CVE-2025-4015 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-4015 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-4015?: CVE-2025-4015 affects Xxyopen Novel-plus. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-4015?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-4015 have an EU (EUVD) identifier?: Yes. CVE-2025-4015 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12561.
When was CVE-2025-4015 published?: CVE-2025-4015 was published on 2025-04-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:xxyopen:novel-plus:*:*:*:*:*:*:*:*

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