CVE-2026-80437

MEDIUMPre-NVD 4.84.8—
EchelonGraph scoreHIGH confidence

Score 4.8 from GitHub Security Advisory published 2026-09-06. a secondary CVSS source baseline 4.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.8Exploit: None knownExposed: 0

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

The Ninja Forms WordPress plugin from 3.14.10 before 3.15.2 does not prevent shortcodes in request-derived values from being executed when it substitutes them into content it later processes for shortcodes, allowing unauthenticated users to run any shortcode registered on the site.

CVSS v3
4.8
EG Score
4.8(high)
EG Risk
22(Track)
EG Risk 22/100SSVC: 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
Severity48% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

September 6, 2026

Last Modified

September 8, 2026

Advisory Details (1)

Auto-updated Sep 6, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Ninja Forms 3.14.10 – 3.15.1 – Unauthenticated Arbitrary Shortcode Execution via IP and Referer Merge Tags | CVE 2026-80437 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/473a3321-7dc6-454a-82f4-89b6a393d09a/

Vendor Advisories for CVE-2026-80437(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 19× in last 7d / 53× 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. 2026-09-24 19:26 UTCEG score recompute
  2. 2026-09-24 19:26 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-23 19:44 UTCEG score recompute
  5. 2026-09-23 19:44 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-22 18:54 UTCEG score recompute
  8. 2026-09-22 18:54 UTCGHSA enrichment
  9. 2026-09-22 16:01 UTCEPSS rescore
  10. 2026-09-21 21:09 UTCEPSS rescore
  11. 2026-09-21 19:11 UTCEG score recompute
  12. 2026-09-21 19:11 UTCGHSA enrichment
  13. 2026-09-20 20:16 UTCEPSS rescore
  14. 2026-09-20 19:29 UTCGHSA enrichment
  15. 2026-09-19 19:47 UTCEG score recompute
  16. 2026-09-19 19:47 UTCGHSA enrichment
  17. 2026-09-18 20:05 UTCEG score recompute
  18. 2026-09-18 20:05 UTCGHSA enrichment
  19. 2026-09-18 19:28 UTCEPSS rescore
  20. 2026-09-17 20:21 UTCEG score recompute
  21. 2026-09-17 20:21 UTCGHSA enrichment
  22. 2026-09-16 18:20 UTCEG score recompute
  23. 2026-09-16 18:20 UTCGHSA enrichment
  24. 2026-09-16 14:08 UTCEPSS rescore
  25. 2026-09-16 05:15 UTCEPSS rescore
Show 28 more
  1. 2026-09-15 18:18 UTCEG score recompute
  2. 2026-09-15 18:18 UTCGHSA enrichment
  3. 2026-09-15 03:12 UTCEPSS rescore
  4. 2026-09-15 03:12 UTCEPSS rescore
  5. 2026-09-14 18:21 UTCGHSA enrichment
  6. 2026-09-13 18:33 UTCEG score recompute
  7. 2026-09-13 18:33 UTCGHSA enrichment
  8. 2026-09-12 18:51 UTCEG score recompute
  9. 2026-09-12 18:51 UTCGHSA enrichment
  10. 2026-09-11 19:08 UTCEG score recompute
  11. 2026-09-11 19:08 UTCGHSA enrichment
  12. 2026-09-11 14:53 UTCEPSS rescore
  13. 2026-09-11 14:53 UTCEPSS rescore
  14. 2026-09-10 19:22 UTCEG score recompute
  15. 2026-09-10 19:22 UTCGHSA enrichment
  16. 2026-09-09 19:37 UTCEG score recompute
  17. 2026-09-09 19:37 UTCGHSA enrichment
  18. 2026-09-08 22:01 UTCEPSS rescore
  19. 2026-09-08 19:54 UTCGHSA enrichment
  20. 2026-09-08 10:59 UTCEG score recompute
  21. 2026-09-08 10:59 UTCGHSA enrichment
  22. 2026-09-07 11:05 UTCEG score recompute
  23. 2026-09-07 11:05 UTCGHSA enrichment
  24. 2026-09-06 11:22 UTCEG score recompute
  25. 2026-09-06 10:49 UTCEG score recompute
  26. 2026-09-06 10:22 UTCEG score recompute
  27. 2026-09-06 09:39 UTCEG score recompute
  28. 2026-09-06 09:39 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-80437?
CVE-2026-80437 is a medium vulnerability published on September 6, 2026. The Ninja Forms WordPress plugin from 3.14.10 before 3.15.2 does not prevent shortcodes in request-derived values from being executed when it substitutes them into content it later processes for shortcodes, allowing unauthenticated users to run any shortcode registered on the site.
When was CVE-2026-80437 disclosed?
CVE-2026-80437 was first published in the National Vulnerability Database on September 6, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-80437 actively exploited?
CVE-2026-80437 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 86.3% of all scored CVEs.
What is the CVSS score of CVE-2026-80437?
CVE-2026-80437 has a CVSS v3 base score of 4.8 (NVD).
How do I remediate CVE-2026-80437?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-80437, 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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