Medium severity6.5NVD Advisory· Published Jul 31, 2018· Updated Jun 17, 2026

CVE-2018-12939

Description

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.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Seeddms/Seeddmsllm-fuzzy
Range: <5.1.8

Patches

Vulnerability mechanics

References

sourceforge.net/p/seeddms/code/ci/seeddms-5.1.x/tree/CHANGELOGnvdPatchRelease NotesThird Party Advisory
www.contextis.com/resources/advisories/cve-2018-12939nvdPatchThird Party Advisory

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