Keep Backup Daily <= 2.1.2 - Authenticated (Admin+) Stored Cross-Site Scripting via Backup Title
| CVE | CVE-2026-3577 |
|---|---|
| CVSS | 4.4 (Medium) |
| Publicly Published | March 20, 2026 |
| Last Updated | March 20, 2026 |
| Researcher |
san6051
- COFFSec
|
Description
The Keep Backup Daily plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the backup title alias (`val` parameter) in the `update_kbd_bkup_alias` AJAX action in all versions up to, and including, 2.1.2. This is due to insufficient input sanitization and output escaping. While `sanitize_text_field()` strips HTML tags on save, it does not encode double quotes. The backup titles are output in HTML attribute contexts without `esc_attr()`. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts via attribute injection that will execute whenever another administrator views the backup list page.
Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.
References
- plugins.trac.wordpress.org
- 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 |
|
| Patched Version |
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Recent vulnerabilities in Keep Backup Daily
| # | Title | CVE ID | CVSS | Researchers | Date |
|---|---|---|---|---|---|
| 1 | Keep Backup Daily <= 2.1.1 - Authenticated (Admin+) Limited Path Traversal via 'kbd_path' Parameter | CVE-2026-3339 | 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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