Backup by Supsystic <= 2.3.11 - Cross-Site Request Forgery to Arbitrary File Download/Deletion

Cross-Site Request Forgery (CSRF)
CVSS 8.1 (High)
Publicly Published February 8, 2021
Last Updated February 3, 2023
Researcher Erik David Martin


The Backup by Supsystic plugin for WordPress is vulnerable to Arbitrary File Download and Deletion in versions up to, and including, 2.3.11. This is due to various path traversal attacks and missing CSRF checks. This makes it possible for authenticated Admin+ attackers to download and delete any file on the vulnerable server and also allows unauthenticated attackers to delete files.



1 affected software package

Software Type Plugin
Software Slug backup-by-supsystic (view on
Patched? Yes
Remediation Update to version 2.3.12, or a newer patched version
Affected Version
  • <= 2.3.11
Patched Version
  • 2.3.12

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