VDB-431794 · Submit #1033604 · CVE-2026-123677

xxyopen/201206030 novel up to 3.5.0 Book Chapter Read BookServiceImpl.java getBookChapter chapterId authorization

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.9	$0-$5k	1.73+

Summaryinfo

A vulnerability was found in xxyopen/201206030 novel up to 3.5.0. It has been declared as problematic. Affected by this vulnerability is the function getBookChapter of the file src/main/java/io/github/xxyopen/novel/service/impl/BookServiceImpl.java of the component Book Chapter Read Handler. Executing a manipulation of the argument chapterId can lead to authorization. The identification of this vulnerability is CVE-2026-123677. The attack may be launched remotely. Furthermore, there is an exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as problematic was found in xxyopen/201206030 novel up to 3.5.0. This vulnerability affects the function getBookChapter of the file src/main/java/io/github/xxyopen/novel/service/impl/BookServiceImpl.java of the component Book Chapter Read Handler. The manipulation of the argument chapterId with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. As an impact it is known to affect confidentiality.

The advisory is available at github.com. This vulnerability was named CVE-2026-123677. The exploitation appears to be easy. The attack can be initiated remotely. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

Applying the patch b8134e774820e0971fa9d8074405b49a01c99bdc is able to eliminate this problem. The bugfix is ready for download at github.com.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

novel

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-639 / CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: b8134e774820e0971fa9d8074405b49a01c99bdc

Timelineinfo

11/06/2026 Advisory disclosed
11/06/2026 +0 days VulDB entry created
11/06/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: 51
Status: Confirmed

CNA: VulDB
CVE: CVE-2026-123677 (🔒)

GCVE (CVE): GCVE-0-2026-123677
GCVE (VulDB): GCVE-100-431794
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 11/06/2026 10:45
Changes: 11/06/2026 10:45 (61)
Complete: 🔍
Submitter: carfeii
Cache ID: 216::103

Submitinfo

Accepted

Submit #1033604: https://github.com/201206030/ novel 3.5.0 Authorization Bypass Through User-Controlled Key (by carfeii)