{"cve":"CVE-2018-11091","nvd":{"published":"2018-05-14T23:29:00.610","modified":"2026-06-17T01:35:15.160","status":"Modified","description":"An issue was discovered in MyBiz MyProcureNet 5.0.0. A malicious file can be uploaded to the webserver by an attacker. It is possible for an attacker to upload a script to issue operating system commands. This vulnerability occurs because an attacker is able to adjust the \"HiddenFieldControlCustomWhiteListedExtensions\" parameter and add arbitrary extensions to the whitelist during the upload. For instance, if the extension .asp is added to the \"HiddenFieldControlCustomWhiteListedExtensions\" parameter, the server accepts \"secctest.asp\" as a legitimate file. Hence malicious files can be uploaded in order to execute arbitrary commands to take over the server.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":9.9},"cwes":["CWE-434"],"references":["http://packetstormsecurity.com/files/155281/FreeBSD-Security-Advisory-FreeBSD-SA-19-26.mcu.html","http://seclists.org/fulldisclosure/2018/May/32","https://seclists.org/bugtraq/2019/Nov/16","https://security.FreeBSD.org/advisories/FreeBSD-SA-19:26.mcu.asc","https://www.sec-consult.com/en/blog/advisories/arbitrary-file-upload-cross-site-scripting-in-mybiz-myprocurenet/"],"products":["mybiz:myprocurenet"],"source":"nvd","synced_at":"2026-10-19T20:50:40.212176939+00:00"},"epss":{"cve":"CVE-2018-11091","score":0.03646,"percentile":0.89587,"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."]}