CVE-2026-90941

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-09-14. the CNA's CVSS baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this weekElevated
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
4.3
EG Score
4.3(high)
EG Risk
35(Track)
EG Risk 35/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity43% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
32%
KEV
Not listed

Published

September 14, 2026

Last Modified

September 24, 2026

Advisory Details (6)

Auto-updated Sep 14, 2026
🔬 Proof of concept available. Patch available. Sources: github_release.
generic🟡 PoC Available

novel-plus through 5.3.3 Missing Authorization on the Admin Book Download Endpoint | Advisories | VulnCheck

https://www.vulncheck.com/advisories/novel-plus-through-5.3.3-missing-authorization-on-the-admin-book-download-endpoint
generic

GitHub - 201206030/novel-plus: novel-plus 是一个多端（PC、WAP）阅读 、功能完善的小说 CMS 系统。包括小说推荐、小说检索、小说排行、小说阅读、小说书架、小说评论、小说爬虫、会员中心、作家专区、充值订阅、新闻发布等功能。 · GitHub

https://github.com/201206030/novel-plus
github_release Patch Available

novel-plus v5.3.3

Patch available: 201206030/novel-plus v5.3.3

https://github.com/201206030/novel-plus/releases/tag/v5.3.3
generic

novel-plus/novel-front/src/main/java/com/java2nb/novel/controller/page/PageController.java at d63c3ee394657046ebd469e263532a350a60e930 · 201206030/novel-plus · GitHub

https://github.com/201206030/novel-plus/blob/d63c3ee394657046ebd469e263532a350a60e930/novel-front/src/main/java/com/java2nb/novel/controller/page/PageController.java
generic

novel-plus/novel-admin/src/main/java/com/java2nb/novel/controller/BookController.java at d63c3ee394657046ebd469e263532a350a60e930 · 201206030/novel-plus · GitHub

https://github.com/201206030/novel-plus/blob/d63c3ee394657046ebd469e263532a350a60e930/novel-admin/src/main/java/com/java2nb/novel/controller/BookController.java
generic

cve-request-poc/novel-plus/poc-09-book-download-missing-authorization.py at master · LinYuanyi1/cve-request-poc · GitHub

https://github.com/LinYuanyi1/cve-request-poc/blob/master/novel-plus/poc-09-book-download-missing-authorization.py

Vendor Advisories for CVE-2026-90941(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 21× in last 7d / 36× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-24 14:53 UTCEG score recompute
  2. 2026-09-24 14:53 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-23 17:54 UTCEPSS rescore
  5. 2026-09-23 17:22 UTCGHSA enrichment
  6. 2026-09-23 07:47 UTCEG score recompute
  7. 2026-09-23 07:47 UTCGHSA enrichment
  8. 2026-09-22 16:01 UTCEPSS rescore
  9. 2026-09-22 09:10 UTCEG score recompute
  10. 2026-09-22 09:10 UTCGHSA enrichment
  11. 2026-09-21 21:09 UTCEPSS rescore
  12. 2026-09-21 10:28 UTCEG score recompute
  13. 2026-09-21 10:28 UTCGHSA enrichment
  14. 2026-09-20 20:16 UTCEPSS rescore
  15. 2026-09-20 11:51 UTCEG score recompute
  16. 2026-09-20 11:51 UTCGHSA enrichment
  17. 2026-09-19 12:54 UTCEG score recompute
  18. 2026-09-19 12:54 UTCGHSA enrichment
  19. 2026-09-18 19:28 UTCEPSS rescore
  20. 2026-09-18 14:16 UTCEG score recompute
  21. 2026-09-18 14:16 UTCGHSA enrichment
  22. 2026-09-17 19:32 UTCEPSS rescore
  23. 2026-09-17 15:34 UTCGHSA enrichment
  24. 2026-09-16 16:56 UTCEG score recompute
  25. 2026-09-16 16:56 UTCGHSA enrichment
Show 11 more
  1. 2026-09-16 15:29 UTCEG score recompute
  2. 2026-09-16 15:29 UTCGHSA enrichment
  3. 2026-09-16 14:09 UTCEPSS rescore
  4. 2026-09-16 11:46 UTCEG score recompute
  5. 2026-09-16 11:45 UTCGHSA enrichment
  6. 2026-09-16 05:15 UTCEPSS rescore
  7. 2026-09-15 13:08 UTCEG score recompute
  8. 2026-09-15 13:08 UTCGHSA enrichment
  9. 2026-09-14 14:30 UTCEG score recompute
  10. 2026-09-14 14:05 UTCEG score recompute
  11. 2026-09-14 14:04 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-90941?
CVE-2026-90941 is a medium vulnerability published on September 14, 2026. 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…
When was CVE-2026-90941 disclosed?
CVE-2026-90941 was first published in the National Vulnerability Database on September 14, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90941 actively exploited?
CVE-2026-90941 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 67.9% of all scored CVEs.
What is the CVSS score of CVE-2026-90941?
CVE-2026-90941 has a CVSS v4.0 base score of 4.3 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-90941?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-90941, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-90941

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