CVE-2018-12940

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.

• CWE-434

• https://sourceforge.net/p/seeddms/code/ci/seeddms-5.1.x/tree/CHANGELOGThird Party Advisory
• https://www.contextis.com/resources/advisories/cve-2018-12940Third Party Advisory
• https://sourceforge.net/p/seeddms/code/ci/seeddms-5.1.x/tree/CHANGELOGThird Party Advisory
• https://www.contextis.com/resources/advisories/cve-2018-12940Third Party Advisory

Published

Jul 31, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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