CVE-2020-27386
8.8 · HIGHOverview
CVE-2020-27386 is a high-severity vulnerability affecting flexdotnetcms_project flexdotnetcms. It was published on November 12, 2020 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
An 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>.
Remediation
Check the references section for vendor advisories and patches from flexdotnetcms_project. Update flexdotnetcms to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| flexdotnetcms_project | flexdotnetcms | >= 0, < 1.5.9 | Affected |
References
Frequently Asked Questions
What is CVE-2020-27386?
CVE-2020-27386 is a high-severity vulnerability affecting flexdotnetcms_project flexdotnetcms. It was published on November 12, 2020 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2020-27386?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2020-27386?
Check the references section for vendor advisories and patches from flexdotnetcms_project. Update flexdotnetcms to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-27386?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-27386 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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