CVE-2018-12940: Seeddms

High severity, CVSS 8.8. EPSS: 2.5% chance of exploitation in the next 30 days.

Unrestricted file upload vulnerability in "op/op.UploadChunks.php" in SeedDMS (formerly LetoDMS and MyDMS) before 5.1.8 allows remote attackers to execute arbitrary code by uploading a file with an executable extension specified by the "qqfile" parameter. This allows an authenticated attacker to upload a malicious file containing PHP code to execute operating system commands to the web root of the application.

Affected products

• Seeddms Seeddms: before 5.1.8 (fixed in 5.1.8)

Published 2018-07-31. Last modified 2026-06-17.