CVE-2025-6533

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.

CVSS v3 5.6 MEDIUM
CVSS v2.0 5.1 MEDIUM

5.6^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

5.1^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:H/Au:N/C:P/I:P/A:P

Exploitability : 4.9 / Impact : 6.4

Access Vector NETWORK

Access Complexity HIGH

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://blog.0xd00.com/blog/captcha-replay-attack-lead-to-brute-force-protection-bypass
https://blog.0xd00.com/blog/captcha-replay-attack-lead-to-brute-force-protection-bypass#poc
https://vuldb.com/?ctiid.313652
https://vuldb.com/?id.313652
https://vuldb.com/?submit.596481
https://blog.0xd00.com/blog/captcha-replay-attack-lead-to-brute-force-protection-bypass

Configurations

No configuration.

History

26 Jun 2025, 18:58

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-06-24 00:15

Updated : 2025-06-26 18:58

NVD link : CVE-2025-6533

Mitre link : CVE-2025-6533

CVE.ORG link : CVE-2025-6533

JSON object : View

Products Affected

No product.

CWE

CWE-287

Improper Authentication

CWE-294

Authentication Bypass by Capture-replay

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