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.
This vulnerability is a high severity with CVSS 8.1 Cross-Site Request Forgery issue affecting the Plugin Backup by Supsystic. It affects Versions up to 2.3.11 and is fixed in 2.3.12.
Use the related hub and response guides to connect this vulnerability report with patch validation, scanner checks, and site hardening work.
Open the grouped hub for related CVEs, affected ranges, severity mix, and patch coverage.
Check access, XML-RPC exposure, backup readiness, and monitoring after patching.
Use containment, evidence capture, remediation, and validation steps when exploit risk is high.
the tracked vulnerability is tracked for the Plugin Backup by Supsystic as high severity with CVSS 8.1. The affected range is Versions up to 2.3.11. Update Backup by Supsystic to 2.3.12 or newer where that version is compatible with the site.
Search engines and operators need more than a title. This page exposes the identifier, affected range, patch evidence, and source coverage that make the vulnerability actionable.
This report uses the upstream feed identifier because a CVE has not been attached to the record yet.
Affected version data gives operators a concrete comparison point against installed WordPress software.
A fixed version is present, so the page can answer update and remediation intent directly.
External references are available for source validation, advisory review, and incident notes.
Use these checks when converting this record into a patch ticket, incident note, or risk acceptance decision.
Inventory the installed Plugin package and compare its version with Versions up to 2.3.11.
Confirm Backup by Supsystic is updated to 2.3.12 or newer.
Review references and CVSS vector details for exploitability, authentication requirements, and exposure path.
After patching, re-run vulnerability monitoring and keep the related plugin or theme hub under review for follow-up CVEs.
| Software Type | Plugin |
|---|---|
| Software Slug |
backup-by-supsystic
View on wordpress.org
|
| CVE | No linked CVE entry. |
| Patched Versions |
2.3.12
|
| Affected Versions |
Versions up to 2.3.11
|
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