CVE-2026-83743

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreHIGH confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-09-01. a secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: Elevated riskExposed: 0

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

A weakness has been identified in invoiceninja Invoice Ninja up to 5.13.26. This affects an unknown part of the file /vedor/profile/ of the component Vendor Portal Profile Update. Executing a manipulation of the argument vendor_contact can lead to authorization bypass. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. Upgrading to version 5.13.27 is able to mitigate this issue. This patch is called f86fd9697ce7bd0d28adbe2e6c5890780482ea90. The affected component should be upgraded.

CVSS v3
6.3
EG Score
6.3(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
Severity63% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

September 1, 2026

Last Modified

September 1, 2026

Advisory Details (3)

Auto-updated Sep 1, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_release.
github_release Patch Available

v5.13.27

Patch available: invoiceninja/invoiceninja v5.13.27

https://github.com/invoiceninja/invoiceninja/releases/tag/v5.13.27
github_commit Patch Available

commit f86fd9697ce7 (invoiceninja/invoiceninja)

Patch available: invoiceninja/invoiceninja v5.13.27 (contains commit f86fd9697ce7)

https://github.com/invoiceninja/invoiceninja/commit/f86fd9697ce7bd0d28adbe2e6c5890780482ea90
generic🟡 PoC Available

Broken Access Control (IDOR) in Invoice Ninja Vendor Portal (v5.13.26) · Ashutosh Jena

https://ashutosh-jena.in/blog/broken-access-control-idor-in-invoice-ninja-vendor-portal-v51326

Vendor Advisories for CVE-2026-83743(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 61× 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. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-20 07:14 UTCEG score recompute
  3. 2026-09-20 07:14 UTCGHSA enrichment
  4. 2026-09-19 08:44 UTCEG score recompute
  5. 2026-09-19 08:44 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 10:06 UTCEG score recompute
  8. 2026-09-18 10:06 UTCGHSA enrichment
  9. 2026-09-17 19:32 UTCEPSS rescore
  10. 2026-09-17 11:38 UTCEG score recompute
  11. 2026-09-17 11:38 UTCGHSA enrichment
  12. 2026-09-16 14:09 UTCEPSS rescore
  13. 2026-09-16 13:07 UTCEG score recompute
  14. 2026-09-16 13:07 UTCGHSA enrichment
  15. 2026-09-16 05:15 UTCEPSS rescore
  16. 2026-09-15 14:40 UTCEG score recompute
  17. 2026-09-15 14:40 UTCGHSA enrichment
  18. 2026-09-15 03:12 UTCEPSS rescore
  19. 2026-09-15 03:12 UTCEPSS rescore
  20. 2026-09-14 16:12 UTCGHSA enrichment
  21. 2026-09-13 17:44 UTCEG score recompute
  22. 2026-09-13 17:44 UTCGHSA enrichment
  23. 2026-09-12 19:16 UTCEG score recompute
  24. 2026-09-12 19:16 UTCGHSA enrichment
  25. 2026-09-11 20:48 UTCEG score recompute
Show 36 more
  1. 2026-09-11 20:48 UTCGHSA enrichment
  2. 2026-09-11 14:53 UTCEPSS rescore
  3. 2026-09-11 14:53 UTCEPSS rescore
  4. 2026-09-10 22:09 UTCEG score recompute
  5. 2026-09-10 22:09 UTCGHSA enrichment
  6. 2026-09-09 23:40 UTCGHSA enrichment
  7. 2026-09-08 23:27 UTCEG score recompute
  8. 2026-09-08 23:27 UTCGHSA enrichment
  9. 2026-09-08 22:01 UTCEPSS rescore
  10. 2026-09-07 14:56 UTCGHSA enrichment
  11. 2026-09-06 14:00 UTCEG score recompute
  12. 2026-09-06 14:00 UTCGHSA enrichment
  13. 2026-09-06 13:48 UTCEPSS rescore
  14. 2026-09-05 15:33 UTCEG score recompute
  15. 2026-09-05 15:33 UTCGHSA enrichment
  16. 2026-09-05 15:31 UTCEPSS rescore
  17. 2026-09-04 17:05 UTCEG score recompute
  18. 2026-09-04 17:05 UTCGHSA enrichment
  19. 2026-09-04 05:07 UTCEPSS rescore
  20. 2026-09-03 18:37 UTCGHSA enrichment
  21. 2026-09-02 20:01 UTCEG score recompute
  22. 2026-09-02 20:01 UTCGHSA enrichment
  23. 2026-09-02 14:12 UTCEPSS rescore
  24. 2026-09-01 20:59 UTCEG score recompute
  25. 2026-09-01 20:59 UTCGHSA enrichment
  26. 2026-09-01 13:54 UTCEPSS rescore
  27. 2026-09-01 13:42 UTCEG score recompute
  28. 2026-09-01 13:42 UTCGHSA enrichment
  29. 2026-09-01 13:35 UTCNVD updateCVSS v4 → 2.1
  30. 2026-09-01 12:50 UTCEG score recompute
  31. 2026-09-01 12:49 UTCGHSA enrichment
  32. 2026-09-01 12:41 UTCMITRE cvelistV5CVSS v4 → 5.3
  33. 2026-09-01 05:40 UTCEG score recompute
  34. 2026-09-01 05:35 UTCNVD updateCVSS v4 → 2.1
  35. 2026-09-01 04:39 UTCEG score recompute
  36. 2026-09-01 04:39 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-83743?
CVE-2026-83743 is a medium vulnerability published on September 1, 2026. A weakness has been identified in invoiceninja Invoice Ninja up to 5.13.26. This affects an unknown part of the file /vedor/profile/ of the component Vendor Portal Profile Update. Executing a manipulation of the argument vendor_contact can lead to authorization bypass. The attack may be performed…
When was CVE-2026-83743 disclosed?
CVE-2026-83743 was first published in the National Vulnerability Database on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-83743 actively exploited?
CVE-2026-83743 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 87.2% of all scored CVEs.
What is the CVSS score of CVE-2026-83743?
CVE-2026-83743 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-83743?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-83743, 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-2026-83743

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