CVE-2026-94104

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-20. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 8.8Exploit: None knownExposed: 0

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

NivoCart through 2.4.0 contains an arbitrary file upload vulnerability in the File Manager multi() endpoint that fails to validate file extensions for new filenames or when chunks parameter is 2 or higher. Attackers with view-only back-office access can upload PHP files to the web-accessible image/data/ directory and execute them for remote code execution.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
—
EPSS %ILE
—
KEV
Not listed

Published

September 20, 2026

Last Modified

September 20, 2026

Advisory Details (5)

Auto-updated Sep 20, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

NivoCart through 2.4.0 Arbitrary File Upload RCE via filemanager | Advisories | VulnCheck

https://www.vulncheck.com/advisories/nivocart-through-2.4.0-arbitrary-file-upload-rce-via-filemanager
generic

GitHub - nivocart/nivocart: NivoCart, advanced shopping cart software solution. · GitHub

https://github.com/nivocart/nivocart
generic

nivocart/upload/admin/controller/common/filemanager_full.php at 6ea6600cda1263ae70c0aab0a70d31091a32c46b · nivocart/nivocart · GitHub

https://github.com/nivocart/nivocart/blob/6ea6600cda1263ae70c0aab0a70d31091a32c46b/upload/admin/controller/common/filemanager_full.php
generic

nivocart/upload/admin/controller/common/filemanager.php at 6ea6600cda1263ae70c0aab0a70d31091a32c46b · nivocart/nivocart · GitHub

https://github.com/nivocart/nivocart/blob/6ea6600cda1263ae70c0aab0a70d31091a32c46b/upload/admin/controller/common/filemanager.php#L527-L562
generic🟡 PoC Available

[Security] Multiple vulnerabilities in NivoCart v2.4.0 · Issue #25 · nivocart/nivocart · GitHub

https://github.com/nivocart/nivocart/issues/25

Vendor Advisories for CVE-2026-94104(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 6× in last 7d / 6× 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. 2026-09-21 13:33 UTCGHSA enrichment
  2. 2026-09-21 00:58 UTCEG score recompute
  3. 2026-09-21 00:58 UTCGHSA enrichment
  4. 2026-09-20 12:23 UTCEG score recompute
  5. 2026-09-20 11:24 UTCEG score recompute
  6. 2026-09-20 11:21 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2026-94104?
CVE-2026-94104 is a high vulnerability published on September 20, 2026. NivoCart through 2.4.0 contains an arbitrary file upload vulnerability in the File Manager multi() endpoint that fails to validate file extensions for new filenames or when chunks parameter is 2 or higher. Attackers with view-only back-office access can upload PHP files to the web-accessible…
When was CVE-2026-94104 disclosed?
CVE-2026-94104 was first published in the National Vulnerability Database on September 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-94104?
CVE-2026-94104 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-94104?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-94104, 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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