XSS in Fahadmahmood Keep Backup Daily
CVE-2026-3577
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 ins…
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.000 (15.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N.
Affected products
- Fahadmahmood Keep Backup Daily — versions 0
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/18a4fa4b-5c99-4347-8b34-e49f7…
- plugins.trac.wordpress.org/browser/keep-backup-daily/tags/2.1.1/inc/functions.p…
- plugins.trac.wordpress.org/browser/keep-backup-daily/trunk/inc/functions.php
- plugins.trac.wordpress.org/browser/keep-backup-daily/tags/2.1.1/inc/kbd_cron.php
- plugins.trac.wordpress.org/browser/keep-backup-daily/trunk/inc/kbd_cron.php
- plugins.trac.wordpress.org/changeset
Frequently asked questions
- What is CVE-2026-3577?
- CVE-2026-3577 is a medium-severity vulnerability in Fahadmahmood Keep Backup Daily, classified under Cross-site Scripting. CVSS score: 4.4/10. Published 2026-03-20.
- How severe is CVE-2026-3577?
- Medium severity. CVSS v3 base score is 4.4 out of 10.