CVE-2026-90941
novel-plus through 5.3.3 Missing Authorization on the Admin Book Download Endpoint
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
novel-plus through 5.3.3 contains an authorization bypass vulnerability in the BookController download endpoint that allows authenticated backend accounts to export complete book text including paid chapters. Attackers can supply a bookId and bookName to retrieve all chapter content without VIP or purchase verification, bypassing the permission checks and data-scope limits enforced elsewhere in the admin interface.
| CWE | CWE-862 |
| Vendor | 201206030 |
| Product | novel-plus |
| Published | Sep 14, 2026 |
Stay Ahead of the Next One
Get instant alerts for 201206030 novel-plus
Be the first to know when new medium vulnerabilities affecting 201206030 novel-plus are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
201206030 / novel-plus
0 ≤ 5.3.3
References
github.com: https://github.com/LinYuanyi1/cve-request-poc/blob/master/novel-plus/poc-09-book-download-missing-authorization.py github.com: https://github.com/201206030/novel-plus/blob/d63c3ee394657046ebd469e263532a350a60e930/novel-admin/src/main/java/com/java2nb/novel/controller/BookController.java github.com: https://github.com/201206030/novel-plus/blob/d63c3ee394657046ebd469e263532a350a60e930/novel-front/src/main/java/com/java2nb/novel/controller/page/PageController.java github.com: https://github.com/201206030/novel-plus/releases/tag/v5.3.3 github.com: https://github.com/201206030/novel-plus vulncheck.com: https://www.vulncheck.com/advisories/novel-plus-through-5.3.3-missing-authorization-on-the-admin-book-download-endpoint
Credits
🔍 Mingsheng Lin