CVE-2026-3577
MEDIUM
4,4
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: high
User Interaction: none
Scope: changed
Confidentiality: low
Integrity: low
Availability: none
Description
AI Translation Available
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.
79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
StableCommon Consequences
Security Scopes Affected:
Access Control
Confidentiality
Integrity
Availability
Potential Impacts:
Bypass Protection Mechanism
Read Application Data
Execute Unauthorized Code Or Commands
Applicable Platforms
Technologies:
AI/ML, Web Based, Web Server
https://plugins.trac.wordpress.org/browser/keep-backup-daily/tags/2.1.1/inc/fun…
https://plugins.trac.wordpress.org/browser/keep-backup-daily/tags/2.1.1/inc/kbd…
https://plugins.trac.wordpress.org/browser/keep-backup-daily/trunk/inc/function…
https://plugins.trac.wordpress.org/browser/keep-backup-daily/trunk/inc/kbd_cron…
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&ol…
https://www.wordfence.com/threat-intel/vulnerabilities/id/18a4fa4b-5c99-4347-8b…