RCE in Drag And Drop Multiple File Upload For Contact Form 7

CVE-2026-18781

The Drag and Drop Multiple File Upload for Contact Form 7 WordPress plugin before 1.3.9.9 does not validate the final name of an uploaded file after stripping characters from it, allowing unauthenticated users to defeat its file type restrictions and execute arbitrary code on the server.

Vulnerability class: RCE (Remote Code Execution)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (43.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-18781: held from 0.003 to 0.005.

EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002

Affected products

  • Drag And Drop Multiple File Upload For Contact Form 7

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-18781?
CVE-2026-18781 is a high-severity vulnerability in Drag And Drop Multiple File Upload For Contact Form 7, classified under Code Injection. CVSS score: 8.1/10. Published 2026-08-21.
How severe is CVE-2026-18781?
High severity. CVSS v3 base score is 8.1 out of 10.