CVE-2026-9815

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-06-18. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0

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

The MagicForm WordPress plugin through 0.1.3 does not properly validate the type of files uploaded through an unauthenticated AJAX action when a form's per-field extension allowlist is left empty, allowing unauthenticated attackers to upload PHP files and execute arbitrary code on the server.

CVSS v3
6.5
EG Score
6.5(high)
EPSS
11.9%
KEV
Not listed

Published

June 18, 2026

Last Modified

June 22, 2026

Advisory Details (1)

Auto-updated Jun 18, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

MagicForm <= 0.1.3 – Unauthenticated Arbitrary File Upload to RCE | CVE 2026-9815 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/043f449f-fc65-4218-83d2-7742e62f2af3/

Vendor Advisories for CVE-2026-9815(1)

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

Data Freshness Timeline

(refreshed 21× in last 7d / 56× 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. 2026-07-06 21:41 UTCEG score recompute
  2. 2026-07-06 21:41 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-05 21:57 UTCEG score recompute
  6. 2026-07-05 21:57 UTCGHSA enrichment
  7. 2026-07-05 02:31 UTCEPSS rescore
  8. 2026-07-04 22:20 UTCEG score recompute
  9. 2026-07-04 22:19 UTCGHSA enrichment
  10. 2026-07-04 06:31 UTCEPSS rescore
  11. 2026-07-03 22:41 UTCEG score recompute
  12. 2026-07-03 22:41 UTCGHSA enrichment
  13. 2026-07-02 23:03 UTCEG score recompute
  14. 2026-07-02 23:03 UTCGHSA enrichment
  15. 2026-07-02 17:02 UTCEPSS rescore
  16. 2026-07-01 23:25 UTCEG score recompute
  17. 2026-07-01 23:25 UTCGHSA enrichment
  18. 2026-07-01 15:07 UTCEPSS rescore
  19. 2026-06-30 23:48 UTCEG score recompute
  20. 2026-06-30 23:48 UTCGHSA enrichment
  21. 2026-06-30 23:22 UTCEPSS rescore
  22. 2026-06-30 00:08 UTCEG score recompute
  23. 2026-06-30 00:08 UTCGHSA enrichment
  24. 2026-06-29 14:06 UTCEPSS rescore
  25. 2026-06-29 00:30 UTCEG score recompute
Show 31 more
  1. 2026-06-29 00:30 UTCGHSA enrichment
  2. 2026-06-28 14:07 UTCEPSS rescore
  3. 2026-06-28 04:56 UTCEPSS rescore
  4. 2026-06-28 00:52 UTCEG score recompute
  5. 2026-06-28 00:52 UTCGHSA enrichment
  6. 2026-06-27 03:08 UTCEPSS rescore
  7. 2026-06-27 01:14 UTCEG score recompute
  8. 2026-06-27 01:14 UTCGHSA enrichment
  9. 2026-06-26 01:37 UTCEG score recompute
  10. 2026-06-26 01:37 UTCGHSA enrichment
  11. 2026-06-25 13:50 UTCEPSS rescore
  12. 2026-06-25 01:57 UTCEG score recompute
  13. 2026-06-25 01:57 UTCGHSA enrichment
  14. 2026-06-24 14:05 UTCEPSS rescore
  15. 2026-06-24 02:20 UTCEG score recompute
  16. 2026-06-24 02:20 UTCGHSA enrichment
  17. 2026-06-23 21:33 UTCEPSS rescore
  18. 2026-06-23 02:43 UTCEG score recompute
  19. 2026-06-23 02:43 UTCGHSA enrichment
  20. 2026-06-22 14:25 UTCEPSS rescore
  21. 2026-06-22 03:05 UTCEG score recompute
  22. 2026-06-22 03:05 UTCGHSA enrichment
  23. 2026-06-21 14:56 UTCEPSS rescore
  24. 2026-06-21 02:50 UTCEG score recompute▲ 6.50
  25. 2026-06-21 02:50 UTCGHSA enrichment
  26. 2026-06-21 01:59 UTCEPSS rescore
  27. 2026-06-19 19:26 UTCEPSS rescore
  28. 2026-06-18 17:52 UTCEPSS rescore
  29. 2026-06-18 15:53 UTCNVD updateCVSS v3 → 6.5 · severity → MEDIUM
  30. 2026-06-18 09:51 UTCEG score recompute
  31. 2026-06-18 09:51 UTCNVD updatefirst tracked

Frequently asked(5)

What is CVE-2026-9815?
CVE-2026-9815 is a medium vulnerability published on June 18, 2026. The MagicForm WordPress plugin through 0.1.3 does not properly validate the type of files uploaded through an unauthenticated AJAX action when a form's per-field extension allowlist is left empty, allowing unauthenticated attackers to upload PHP files and execute arbitrary code on the server.
When was CVE-2026-9815 disclosed?
CVE-2026-9815 was first published in the National Vulnerability Database on June 18, 2026, with the most recent update on June 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9815 actively exploited?
CVE-2026-9815 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 11.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-9815?
CVE-2026-9815 has a CVSS v3.1 base score of 6.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-9815?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9815, 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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