CVE-2026-90941

MEDIUMPre-NVD 4.34.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 4.3 from GitHub Security Advisory (severity: MODERATE) published 2026-09-14. The CNA's CVSS baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: the CNA's CVSS, EPSS, GitHub Security Advisory
Elevated

Also known asEUVD-2026-77485 (ENISA EUVD) · GHSA-39v2-xq6r-hppw (GitHub Security Advisories)Source: ENISA EUVD

4.3EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 4.3Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

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
4.3MEDIUMmedium confidence
EG Risk
35
EG Risk 35/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity43% × 45%
Impact severity (EG Severity): CVSS 4.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
35th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (4.3): severity, escalated by confirmed exploitation. This CVE's 4.3 is its impact severity (EG Severity), not escalated.

EG Severity
4.3 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-10). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 14, 2026

Last Modified

September 24, 2026

Advisory Details (6)

Auto-updated Sep 14, 2026
Patch available. Sources: github_release.
Web page

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
Web page

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
Web page

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
Web page

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
Web page

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 9× in last 7d / 33× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 129 rows on record for this CVE, as 99 entries (1 repeat merged).

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 29 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:58 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  2. 2026-11-12 16:35 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  3. 2026-11-11 16:41 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  4. 2026-11-11 10:42 UTCEchelonGraph re-scored
  5. 2026-11-11 10:42 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub severity MODERATE · GitHub CVSS 4.3
  6. 2026-11-10 16:46 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  7. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  8. 2026-11-08 16:41 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  9. 2026-11-07 19:09 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub severity MODERATE · GitHub CVSS 4.3
  10. 2026-11-07 19:09 UTCEchelonGraph re-scored
  11. 2026-11-07 16:40 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  12. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  13. 2026-11-05 16:39 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  14. 2026-11-04 16:37 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  15. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  16. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  17. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  18. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  19. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  20. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  21. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  22. 2026-10-27 16:33 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  23. 2026-10-27 13:25 UTCOSV refresh
  24. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  25. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.4% · 34th percentile
Show 74 more
  1. 2026-10-25 13:51 UTCEchelonGraph re-scored
  2. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  3. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  4. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  5. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  6. 2026-10-20 16:34 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  7. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  8. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  9. 2026-10-18 03:00 UTCEchelonGraph re-scored
  10. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  11. 2026-10-16 16:45 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  12. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  13. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  14. 2026-10-14 15:37 UTCEchelonGraph re-scored
  15. 2026-10-14 15:37 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  16. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  17. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  18. 2026-10-12 14:46 UTCEchelonGraph re-scored
  19. 2026-10-11 19:45 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  20. 2026-10-11 19:13 UTCEchelonGraph re-scored
  21. 2026-10-11 16:30 UTCEchelonGraph re-scored
  22. 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  23. 2026-10-11 13:45 UTCEchelonGraph re-scored
  24. 2026-10-10 20:14 UTCEchelonGraph re-scored
  25. 2026-10-10 20:13 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  26. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  27. 2026-10-09 21:35 UTCEchelonGraph re-scored
  28. 2026-10-09 21:35 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  29. 2026-10-09 20:08 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  30. 2026-10-08 22:56 UTCEchelonGraph re-scored
  31. 2026-10-08 22:56 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  32. 2026-10-08 17:14 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  33. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  34. 2026-10-07 21:08 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  35. 2026-10-06 22:29 UTCEchelonGraph re-scored
  36. 2026-10-06 22:29 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  37. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  38. 2026-10-05 23:52 UTCEchelonGraph re-scored
  39. 2026-10-05 23:52 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  40. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  41. 2026-10-05 01:10 UTCEchelonGraph re-scored
  42. 2026-10-05 01:10 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  43. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  44. 2026-10-04 02:22 UTCEchelonGraph re-scored
  45. 2026-10-04 02:22 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  46. 2026-10-03 03:44 UTCEchelonGraph re-scored
  47. 2026-10-03 03:44 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  48. 2026-10-02 05:06 UTCEchelonGraph re-scored
  49. 2026-10-02 05:06 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  50. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  51. 2026-10-01 05:28 UTCEchelonGraph re-scored
  52. 2026-10-01 05:28 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  53. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  54. 2026-09-30 06:50 UTCEchelonGraph re-scored
  55. 2026-09-30 06:50 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  56. 2026-09-29 08:12 UTCEchelonGraph re-scored
  57. 2026-09-29 08:12 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  58. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  59. 2026-09-28 09:27 UTCEchelonGraph re-scored
  60. 2026-09-28 09:27 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  61. 2026-09-27 13:49 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  62. 2026-09-27 10:49 UTCEchelonGraph re-scored
  63. 2026-09-27 10:49 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  64. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  65. 2026-09-26 12:08 UTCEchelonGraph re-scored
  66. 2026-09-26 12:08 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  67. 2026-09-25 13:30 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  68. 2026-09-24 14:53 UTCEchelonGraph re-scored
  69. 2026-09-24 14:53 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  70. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  71. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  72. 2026-09-23 17:22 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3
  73. 2026-09-23 07:47 UTCEchelonGraph re-scored
  74. 2026-09-23 07:47 UTCGHSA enrichmentGHSA-39v2-xq6r-hppw · GitHub CVSS 4.3

Frequently asked(5)

What is CVE-2026-90941?
CVE-2026-90941 is a medium-severity vulnerability; its CVE record was 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 made public?
CVE-2026-90941 was made public on September 12, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on September 14, 2026. EchelonGraph's copy of the record carries a last-modified date of September 24, 2026; the record at its source may have been updated since.
Is CVE-2026-90941 actively exploited?
CVE-2026-90941 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (35th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-90941?
CVE-2026-90941 has a CVSS base score of 4.3 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-90941?
A fix for CVE-2026-90941 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-90941 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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

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