CVE-2026-90940

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-09-14. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 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 insecure default cache-management password in the CacheController.refreshCache endpoint that allows anonymous attackers to invalidate portal caches by supplying the hardcoded default value in the URL path. Attackers can trigger unauthorized cache invalidation by accessing the cache/refresh endpoint with the known default password, forcing unnecessary database queries to repopulate the cache.

CVSS v3
5.3
EG Score
5.3(high)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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
Severity53% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
24%
KEV
Not listed

Published

September 14, 2026

Last Modified

September 14, 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 Default Cache Management Password in the Front Portal | Advisories | VulnCheck

https://www.vulncheck.com/advisories/novel-plus-through-5.3.3-default-cache-management-password-in-the-front-portal
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/resources/application.yml at d63c3ee394657046ebd469e263532a350a60e930 · 201206030/novel-plus · GitHub

https://github.com/201206030/novel-plus/blob/d63c3ee394657046ebd469e263532a350a60e930/novel-front/src/main/resources/application.yml
generic

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

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

cve-request-poc/novel-plus/poc-07-front-cache-refresh-hardcoded-password.py at master · LinYuanyi1/cve-request-poc · GitHub

https://github.com/LinYuanyi1/cve-request-poc/blob/master/novel-plus/poc-07-front-cache-refresh-hardcoded-password.py

Vendor Advisories for CVE-2026-90940(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 15× in last 7d / 15× 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. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 11:22 UTCEG score recompute
  3. 2026-09-18 11:22 UTCGHSA enrichment
  4. 2026-09-17 19:32 UTCEPSS rescore
  5. 2026-09-17 12:09 UTCEG score recompute
  6. 2026-09-17 12:09 UTCGHSA enrichment
  7. 2026-09-16 14:09 UTCEPSS rescore
  8. 2026-09-16 12:56 UTCEG score recompute
  9. 2026-09-16 12:56 UTCGHSA enrichment
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-15 13:43 UTCEG score recompute
  12. 2026-09-15 13:43 UTCGHSA enrichment
  13. 2026-09-14 14:30 UTCEG score recompute
  14. 2026-09-14 14:05 UTCEG score recompute
  15. 2026-09-14 14:04 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-90940?
CVE-2026-90940 is a medium vulnerability published on September 14, 2026. novel-plus through 5.3.3 contains an insecure default cache-management password in the CacheController.refreshCache endpoint that allows anonymous attackers to invalidate portal caches by supplying the hardcoded default value in the URL path. Attackers can trigger unauthorized cache invalidation by…
When was CVE-2026-90940 disclosed?
CVE-2026-90940 was first published in the National Vulnerability Database on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90940 actively exploited?
CVE-2026-90940 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 75.9% of all scored CVEs.
What is the CVSS score of CVE-2026-90940?
CVE-2026-90940 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-90940?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-90940, 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

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