CVE-2026-90941
novel-plus through 5.3.3 Missing Authorization on the Admin Book Download Endpoint
- State
- Published
- Severity
- 5.3 Medium
- Published
- Sep 14, 2026
- Updated
- Sep 24, 2026
- Reserved
- Sep 14, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N | VulnCheck |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
novel-plus201206030 |
|
References
- GET /novel/book/download missing authorization proof of conceptexploit
- BookController.download is the only one of nine methods without @RequiresPermissionstechnical-description
- The reader portal gates paid chapters behind a needBuy purchase check that the admin download endpoint omitstechnical-description
- novel-plus v5.3.3 Release Notesrelease-notes
- Productproduct
- VulnCheck Advisory: novel-plus through 5.3.3 Missing Authorization on the Admin Book Download Endpointthird-party-advisory
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