CVE-2018-12939

A directory traversal flaw in SeedDMS (formerly LetoDMS and MyDMS) before 5.1.8 allows an authenticated attacker to write to (or potentially delete) arbitrary files via a .. (dot dot) in the "op/op.UploadChunks.php" "qquuid" parameter. NOTE: this can be leveraged to execute arbitrary code by using CVE-2018-12940.

• CWE-22

• https://sourceforge.net/p/seeddms/code/ci/seeddms-5.1.x/tree/CHANGELOGPatch, Release Notes, Third Party Advisory
• https://www.contextis.com/resources/advisories/cve-2018-12939Patch, Third Party Advisory
• https://sourceforge.net/p/seeddms/code/ci/seeddms-5.1.x/tree/CHANGELOGPatch, Release Notes, Third Party Advisory
• https://www.contextis.com/resources/advisories/cve-2018-12939Patch, Third 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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