CVE-2026-88419

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-22. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this weekElevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: Elevated riskExposed: 0

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

An unrestricted upload of files with a dangerous type in the thumbnail-upload endpoint (/index.php?m=member&f=article&v=thumbUpload) of WuzhiCMS 5.0.0 allows an authenticated low-privileged member to upload a crafted .php file and execute arbitrary PHP code on the server, because the stored file extension is taken verbatim from the client-supplied filename with no extension allowlist or content validation and the file is written to the web-accessible uploadfile/ directory, from which the web server executes PHP.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
56(Track*)
EG Risk 56/100SSVC: 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
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

September 22, 2026

Last Modified

September 24, 2026

Advisory Details (1)

Auto-updated Sep 22, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Unrestricted Upload of File with Dangerous Type (.php) in WuzhiCMS 5.0.0 (`member/article.php` `thumbUpload`) leading to Remote Code Execution · Issue #6 · 15536818056/CVE · GitHub

https://github.com/15536818056/CVE/issues/6

Vendor Advisories for CVE-2026-88419(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 16× in last 7d / 16× 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. 2026-09-25 09:12 UTCGHSA enrichment
  2. 2026-09-24 21:37 UTCGHSA enrichment
  3. 2026-09-24 18:53 UTCEG score recompute
  4. 2026-09-24 18:53 UTCGHSA enrichment
  5. 2026-09-24 14:04 UTCEPSS rescore
  6. 2026-09-24 07:18 UTCGHSA enrichment
  7. 2026-09-23 19:43 UTCEG score recompute
  8. 2026-09-23 19:43 UTCGHSA enrichment
  9. 2026-09-23 17:54 UTCEPSS rescore
  10. 2026-09-23 08:08 UTCEG score recompute
  11. 2026-09-23 08:08 UTCGHSA enrichment
  12. 2026-09-22 20:33 UTCEG score recompute
  13. 2026-09-22 19:48 UTCEG score recompute▲ 8.80
  14. 2026-09-22 19:47 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  15. 2026-09-22 19:33 UTCEG score recompute
  16. 2026-09-22 19:32 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-88419?
CVE-2026-88419 is a high vulnerability published on September 22, 2026. An unrestricted upload of files with a dangerous type in the thumbnail-upload endpoint (/index.php?m=member&f=article&v=thumbUpload) of WuzhiCMS 5.0.0 allows an authenticated low-privileged member to upload a crafted .php file and execute arbitrary PHP code on the server, because the stored file…
When was CVE-2026-88419 disclosed?
CVE-2026-88419 was first published in the National Vulnerability Database on September 22, 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-2026-88419 actively exploited?
CVE-2026-88419 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 61.3% of all scored CVEs.
What is the CVSS score of CVE-2026-88419?
CVE-2026-88419 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-88419?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-88419, 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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