CVE-2026-18946

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-10. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

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

The Contact Form to Any API WordPress plugin before 3.0.7 does not use a random filename when copying files uploaded through contact forms into a publicly accessible directory, allowing unauthenticated attackers to enumerate and download files submitted by other users.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

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
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
17%
KEV
Not listed

Published

August 10, 2026

Last Modified

August 10, 2026

Advisory Details (1)

Auto-updated Aug 10, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Contact Form to Any API < 3.0.7 – Unauthenticated Sensitive File Disclosure via Predictable Filename | CVE 2026-18946 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/fa13ebbb-8eea-492d-8f59-58228efb94d8/

Vendor Advisories for CVE-2026-18946(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 27× in last 7d / 46× 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. 2026-08-20 15:34 UTCGHSA enrichment
  2. 2026-08-20 02:29 UTCEG score recompute
  3. 2026-08-20 02:29 UTCGHSA enrichment
  4. 2026-08-19 17:03 UTCEPSS rescore
  5. 2026-08-19 13:25 UTCGHSA enrichment
  6. 2026-08-19 00:18 UTCEG score recompute
  7. 2026-08-19 00:18 UTCGHSA enrichment
  8. 2026-08-18 13:48 UTCEPSS rescore
  9. 2026-08-18 11:15 UTCGHSA enrichment
  10. 2026-08-17 22:10 UTCEG score recompute
  11. 2026-08-17 22:10 UTCGHSA enrichment
  12. 2026-08-17 13:47 UTCEPSS rescore
  13. 2026-08-17 09:06 UTCGHSA enrichment
  14. 2026-08-16 20:03 UTCEG score recompute
  15. 2026-08-16 20:03 UTCGHSA enrichment
  16. 2026-08-16 14:56 UTCEPSS rescore
  17. 2026-08-16 06:59 UTCEG score recompute
  18. 2026-08-16 06:59 UTCGHSA enrichment
  19. 2026-08-16 02:14 UTCEPSS rescore
  20. 2026-08-15 17:57 UTCGHSA enrichment
  21. 2026-08-15 04:54 UTCEG score recompute
  22. 2026-08-15 04:54 UTCGHSA enrichment
  23. 2026-08-15 01:30 UTCEPSS rescore
  24. 2026-08-14 15:50 UTCGHSA enrichment
  25. 2026-08-14 02:47 UTCEG score recompute
Show 21 more
  1. 2026-08-14 02:47 UTCGHSA enrichment
  2. 2026-08-13 22:00 UTCEPSS rescore
  3. 2026-08-13 13:44 UTCGHSA enrichment
  4. 2026-08-13 00:41 UTCEG score recompute
  5. 2026-08-13 00:41 UTCGHSA enrichment
  6. 2026-08-12 13:50 UTCEPSS rescore
  7. 2026-08-12 11:39 UTCGHSA enrichment
  8. 2026-08-11 22:36 UTCEG score recompute
  9. 2026-08-11 22:36 UTCGHSA enrichment
  10. 2026-08-11 13:42 UTCEPSS rescore
  11. 2026-08-11 09:33 UTCEG score recompute
  12. 2026-08-11 09:33 UTCGHSA enrichment
  13. 2026-08-11 00:00 UTCEPSS rescore
  14. 2026-08-10 20:30 UTCEG score recompute
  15. 2026-08-10 20:30 UTCGHSA enrichment
  16. 2026-08-10 19:20 UTCEG score recompute▲ 7.50
  17. 2026-08-10 19:20 UTCGHSA enrichment
  18. 2026-08-10 19:19 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  19. 2026-08-10 07:19 UTCNVD update
  20. 2026-08-10 06:41 UTCEG score recompute
  21. 2026-08-10 06:41 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-18946?
CVE-2026-18946 is a high vulnerability published on August 10, 2026. The Contact Form to Any API WordPress plugin before 3.0.7 does not use a random filename when copying files uploaded through contact forms into a publicly accessible directory, allowing unauthenticated attackers to enumerate and download files submitted by other users.
When was CVE-2026-18946 disclosed?
CVE-2026-18946 was first published in the National Vulnerability Database on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18946 actively exploited?
CVE-2026-18946 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 82.6% of all scored CVEs.
What is the CVSS score of CVE-2026-18946?
CVE-2026-18946 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-18946?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18946, 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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