Arbitrary file upload in Modern Events Calendar Lite - CVE-2021-24145

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Main Vulnerability Database Vulnerabilities #VU66954

Arbitrary file upload in Modern Events Calendar Lite - CVE-2021-24145

Published: September 3, 2022


Vulnerability identifier: #VU66954
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear
CVE-ID: CVE-2021-24145
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability: Public exploit is available
Vendor: Webnus Team
Affected software:
Modern Events Calendar Lite

Detailed vulnerability description

The vulnerability allows a remote user to compromise vulnerable system.

The vulnerability exists due to insufficient validation of content-type when processing files uploads. A remote website administrator can upload an arbitrary PHP file by setting its content-type to "text/csv" and execute it on the server.


How to mitigate CVE-2021-24145

Install update from vendor's website.

Sources