cbcvebase.
CVE-2020-11738
published 2020-04-13

CVE-2020-11738: 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…

PriorityP186high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
KEVITWEXPLOIT
CISA Known Exploited Vulnerabilitydue 2022-05-03
Exploited in the wild
EPSS
97.82%
99.9th percentile
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.

Affected

2 ranges
VendorProductVersion rangeFixed in
awesomemotiveduplicator< 1.3.281.3.28
awesomemotiveduplicator< 3.8.7.13.8.7.1

Detection & IOCsextracted from sources · hover to see the quote

url/wp-admin/admin-ajax.php?action=duplicator_download&file=../../../../../../../../..
url/wp-admin/admin-ajax.php?action=duplicator_download&file=..%2F..%2F..%2F..%2F..%2Fetc%2Fpasswd
url/wp-admin/admin-ajax.php?action=duplicator_download&file=%2F..%2Fwp-config.php
path/wp-admin/admin-ajax.php
  • Look for unauthenticated GET requests to /wp-admin/admin-ajax.php with action=duplicator_download or action=duplicator_init and a 'file' parameter containing directory traversal sequences (../ or URL-encoded %2F..%2F).
  • Flag requests where the 'file' parameter contains sequences of multiple '../' (e.g., 11 levels deep: '../../../../../../../../..') targeting sensitive files like /etc/passwd or wp-config.php.
  • This vulnerability was actively exploited in the wild at time of discovery; treat any matching traffic as high-priority incident. The vulnerability is present only in Duplicator versions 1.3.24 and 1.3.26 (not in 1.3.22 and before).
  • ·The vulnerability is version-specific: only Duplicator 1.3.24 and 1.3.26 are affected. Versions 1.3.22 and earlier are NOT vulnerable, and versions 1.3.28+ (Pro: 3.8.7.1+) are patched. Tune detections to avoid false positives on patched or older unaffected installs.
  • ·Exploitation requires no authentication (unauthenticated arbitrary file read), so blocking based on authenticated session presence is not a viable mitigation or detection filter.
  • ·Both the free 'Duplicator' and 'Duplicator Pro' plugins are affected (Pro before 3.8.7.1). Ensure detection/patching coverage includes both plugin variants.

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
vulncheck7.5HIGH
cisa7.5HIGH
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