CVE-2020-27386

Summary

CVECVE-2020-27386
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-11-12 19:15:00 UTC
Updated2022-12-06 21:18:00 UTC
DescriptionAn unrestricted file upload issue in FlexDotnetCMS before v1.5.9 allows an authenticated remote attacker to upload and execute arbitrary files by using the FileManager to upload malicious code (e.g., ASP code) in the form of a safe file type (e.g., a TXT file), and then using the FileEditor (in v1.5.8 and prior) or the FileManager's rename function (in v1.5.7 and prior) to rename the file to an executable extension (e.g., ASP), and finally executing the file via an HTTP GET request to /<path_to_file>.

Risk And Classification

Problem Types: CWE-434

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Flexdotnetcms Project Flexdotnetcms All All All All
Application Flexdotnetcms Project Flexdotnetcms All All All All

References

ReferenceSourceLinkTags
FlexDotnetCMS 1.5.8 Arbitrary ASP File Upload ≈ Packet Storm MISC packetstormsecurity.com
What’s in a name: RCE Hunting in CMSs via Unrestricted File Upload MISC blog.vonahi.io Exploit, Third Party Advisory
Release FlexDotNetCMS v1.5.9 · MacdonaldRobinson/FlexDotnetCMS · GitHub MISC github.com Release Notes, Third Party Advisory
Add flexdotnetcms v1.5.8 exploit module and docs by kalba-security · Pull Request #14339 · rapid7/metasploit-framework · GitHub MISC github.com Exploit, Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report