{"cve":"CVE-2018-12940","nvd":{"published":"2018-07-31T14:29:00.497","modified":"2026-06-17T01:38:37.050","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-434"],"references":["https://sourceforge.net/p/seeddms/code/ci/seeddms-5.1.x/tree/CHANGELOG","https://www.contextis.com/resources/advisories/cve-2018-12940","https://sourceforge.net/p/seeddms/code/ci/seeddms-5.1.x/tree/CHANGELOG","https://www.contextis.com/resources/advisories/cve-2018-12940"],"products":["seeddms:seeddms"],"source":"nvd","synced_at":"2026-10-19T20:52:03.425131697+00:00"},"epss":{"cve":"CVE-2018-12940","score":0.02509,"percentile":0.8476,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}