EUVD-2026-77485
GHSA-39v2-xq6r-hppw
Severity by source
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
PR:L reflects required backend admin credential; C:L captures paid book text exposure within application scope with no integrity or availability impact.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
5DescriptionCVE.org
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.
AnalysisAI
The BookController download endpoint in novel-plus (all versions through 5.3.3) omits authorization verification, allowing any authenticated backend admin account to export complete book text - including paid chapters - by supplying only a bookId and bookName parameter pair. This endpoint skips the VIP subscription and per-chapter purchase enforcement that the rest of the admin interface correctly applies, enabling unauthorized monetized-content extraction. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid authenticated backend admin account on the novel-plus admin interface - unauthenticated users and front-end reader accounts cannot exploit this endpoint. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 5.3 (AV:N/AC:L/AT:N/PR:L) accurately reflects the core limiting factor: exploitation requires a valid backend admin credential, not unauthenticated network access. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch beyond v5.3.3 has been identified at time of analysis - operators should monitor the upstream repository at https://github.com/201206030/novel-plus and the VulnCheck advisory at https://www.vulncheck.com/advisories/novel-plus-through-5.3.3-missing-authorization-on-the-admin-book-download-endpoint for a patched release. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
More in Novel Plus
View allCVE-2025-45890 is a critical directory traversal vulnerability in Novel Plus before v5.1.0 that allows unauthenticated r
A vulnerability was found in Novel-Plus 4.3.0-RC1 and classified as critical. Rated critical severity (CVSS 9.8), this v
A vulnerability has been found in Novel-Plus 4.3.0-RC1 and classified as critical. Rated critical severity (CVSS 9.8), t
SQL injection vulnerability in Novel-Plus v.4.2.0 allows a remote attacker to execute arbitrary code via a crafted scrip
novel-plus 3.6.2 is vulnerable to SQL Injection. Rated critical severity (CVSS 9.8), this vulnerability is remotely expl
A vulnerability was found in novel-plus 3.6.2 and classified as critical. Rated critical severity (CVSS 9.8), this vulne
A vulnerability, which was classified as critical, was found in novel-plus 3.6.2. Rated critical severity (CVSS 9.8), th
Novel-Plus v3.6.2 was discovered to contain a hard-coded JWT key located in the project config file. Rated critical seve
Novel-Plus v3.6.1 was discovered to contain a SQL injection vulnerability via the keyword parameter at /service/impl/Boo
A vulnerability classified as critical was found in novel-plus 3.6.2. Rated high severity (CVSS 8.8), this vulnerability
A vulnerability classified as critical has been found in novel-plus 3.6.2. Rated high severity (CVSS 8.8), this vulnerab
A vulnerability was found in novel-plus 3.6.2. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitabl
Same weakness CWE-862 – Missing Authorization
View allShare
External POC / Exploit Code
Leaving vuln.today