Keep Backup Daily <= 2.1.1 - Authenticated (Admin+) Limited Path Traversal via 'kbd_path' Parameter
| CVE | CVE-2026-3339 |
|---|---|
| CVSS | 2.7 (Low) |
| Publicly Published | March 20, 2026 |
| Last Updated | March 20, 2026 |
| Researcher |
san6051
- COFFSec
|
Description
The Keep Backup Daily plugin for WordPress is vulnerable to Limited Path Traversal in all versions up to, and including, 2.1.1 via the `kbd_open_upload_dir` AJAX action. This is due to insufficient validation of the `kbd_path` parameter, which is only sanitized with `sanitize_text_field()` - a function that does not strip path traversal sequences. This makes it possible for authenticated attackers, with Administrator-level access and above, to list the contents of arbitrary directories on the server outside of the intended uploads directory.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for Keep Backup Daily
| Software Type | Plugin |
|---|---|
| Software Slug | keep-backup-daily (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 2.1.3, or a newer patched version |
| Affected Version |
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| Patched Version |
|
Recent vulnerabilities in Keep Backup Daily
| # | Title | CVE ID | CVSS | Researchers | Date |
|---|---|---|---|---|---|
| 1 | Keep Backup Daily <= 2.1.2 - Authenticated (Admin+) Stored Cross-Site Scripting via Backup Title | CVE-2026-3577 | san6051 | March 20, 2026 | |
| 2 | Keep Backup Daily <= 2.1.0 - Authenticated (Admin+) Arbitrary File Download | CVE-2025-26779 | Caesar Evan Santoso | February 14, 2025 | |
| 3 | Keep Backup Daily <= 2.0.8 - Unauthenticated Information Disclosure | CVE-2024-48024 | Joshua Chan | October 9, 2024 | |
| 4 | Keep Backup Daily <= 2.0.3 - Reflected Cross-Site Scripting | July 7, 2022 | |||
| 5 | Keep Backup Daily <= 2.0.2 - Reflected Cross-Site Scripting | CVE-2022-1820 | Eduardo Estevao de Oliveira Azevedo | May 23, 2022 |
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