CVE-2025-6533

5.6 MEDIUM
Published: June 24, 2025 Modified: October 01, 2025

Description

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 respond in any way.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://vuldb.com/?ctiid.313652
Source: cna@vuldb.com
Permissions Required VDB Entry
https://vuldb.com/?id.313652
Source: cna@vuldb.com
Third Party Advisory VDB Entry
https://vuldb.com/?submit.596481
Source: cna@vuldb.com
Third Party Advisory VDB Entry
https://blog.0xd00.com/blog/captcha-replay-attack-lead-to-brute-force-protection-bypass
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit Third Party Advisory

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
5.6 / 10.0
EPSS (Exploit Probability)
0.1%
31th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

xxyopen