CVE-2025-6533
A vulnerability, which was classified as critical, has been found in xxyopen/201206030 novel-plus up to 5.1.3.
Does this matter?
Lower severity and a low EPSS score (0.56%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 2.9 LOWCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.56% probability · 46th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-287, CWE-294, CWE-307
- Affected
- xxyopen/novel-plus
- Source
- cna@vuldb.com
EPSS 0.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://blog.0xd00.com/blog/captcha-replay-attack-lead-to-brute-force-protection-bypassExploit, Third Party Advisory
- https://blog.0xd00.com/blog/captcha-replay-attack-lead-to-brute-force-protection-bypass#pocExploit, Third Party Advisory
- https://vuldb.com/?ctiid.313652Permissions Required, VDB Entry
- https://vuldb.com/?id.313652Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.596481Third Party Advisory, VDB Entry
- https://blog.0xd00.com/blog/captcha-replay-attack-lead-to-brute-force-protection-bypassExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.