CVE-2020-11738: WordPress Snap Creek Duplicator Plugin File Download Vulnerability

Vulnerability summary

CVE-2020-11738 is a high (CVSS 7.5) Path Traversal vulnerability in WordPress Snap Creek Duplicator Plugin. It is known to be exploited: CISA lists it, first on 03-11-2021. EPSS estimates a 97.82% chance of exploitation in the next 30 days, higher than 99.9% of scored vulnerabilities. 5 public exploits are recorded. Fixed in 1.3.28 and 3.8.7.1.

Timeline

1. 13-04-2020
   PublishedVulnerability first disclosed.
2. 03-11-2021
   Added to CISA KEVExploitedWordPress Snap Creek Duplicator Plugin File Download Vulnerability
3. 03-05-2022
   CISA remediation dueDeadline passedApply updates per vendor instructions.
4. 12-01-2026
   Last modifiedVulnerability information updated.

Description

The Snap Creek Duplicator plugin before 1.3.28 for WordPress (and Duplicator Pro before 3.8.7.1) allows Directory Traversal via ../ in the file parameter to duplicator_download or duplicator_init.

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.