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Vulnerabilities

Vulnerability · CVE-2025-6533

A vulnerability, which was classified as critical, has been found in xxyopen/201206030 novel-plus up to 5.1.3.

Published Jun 24, 2025 · catalog updated Jun 25, 2025 · Novel-Plus

Check if you run it

No confirmed exploitation is on record for CVE-2025-6533. EPSS is 0.56%. Act only if a listed version of Novel-Plus is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.56%
Remediation
Vendor / distro source
Affected products
vendor xxyopen Novel-Plus 5.1.2

A vulnerability, which was classified as critical, has been found in xxyopen/201206030 novel-plus up to 5.1.3. Affected by this issue is the function ajaxLogin of the file novel-admin/src/main/java/com/java2nb/system/controller/LoginController.java of the component CATCHA Handler. The manipulation leads to authentication bypass by capture-replay. The attack may be launched remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor xxyopen Novel-Plus 5.1.25.1.2

How to fix CVE-2025-6533

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-6533. EPSS is 0.56%. Act only if a listed version of Novel-Plus is installed.

Which versions are affected?

Compare what you have installed with xxyopen Novel-Plus 5.1.2 5.1.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.56%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 24, 2025 · EUVD

    Detected

    A vulnerability, which was classified as critical, has been found in xxyopen/201206030 novel-plus up to 5.1.3. Affected by this issue is the function ajaxLogin of the file novel-admin/src/main/java/com/java2nb/system/controller/LoginController.java of the component CATCHA Handler. The manipulation leads to authentication bypass by capture-replay. The attack may be launched remotely. The complexity

  2. Jun 25, 2025 · EUVD

    Updated

    A vulnerability, which was classified as critical, has been found in xxyopen/201206030 novel-plus up to 5.1.3. Affected by this issue is the function ajaxLogin of the file novel-admin/src/main/java/com/java2nb/system/controller/LoginController.java of the component CATCHA Handler. The manipulation leads to authentication bypass by capture-replay. The attack may be launched remotely. The complexity

Sources

  • CVE.orgVulnerability recordCVE-2025-6533

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-6533

    30-day exploitation probability 0.56%

    first.org
  • EUVDVulnerability recordEUVD-2025-18961

    A vulnerability, which was classified as critical, has been found in xxyopen/201206030 novel-plus up to 5.1.3. Affected by this issue is the function ajaxLogin of the file novel-admin/src/main/java/com/java2nb/system/controller/LoginController.java of the component CATCHA Handler

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.