CVE-2020-36388

HIGH

Civicrm < 5.21.3 - Unrestricted File Upload

Title source: rule

In CiviCRM before 5.21.3 and 5.22.x through 5.24.x before 5.24.3, users may be able to upload and execute a crafted PHAR archive.

Core 2

Core References

Exploit, Third Party Advisory

Vendor Advisory

CVSS v3 8.8

EPSS 0.0066

EPSS Percentile 71.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-434

Status published

Products (1)

civicrm/civicrm < 5.21.3

Published Jun 17, 2021

Tracked Since Feb 18, 2026