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.

CVSS v3.1

8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.32% chance of exploitation in the next 30 days, 24th percentile

Published

2026-08-21

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/fb59519b-80ae-48e4-a31a-71d24ded205b/

References

• CVE Record
• NVD entry

Related

• CVE-2026-18779
• CVE-2026-18784
• CVE-2026-18778
• CVE-2026-18785
• CVE-2026-18777
• CVE-2026-18786