How severe is CVE-2026-4305?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Wproyal Royal Wordpress Backup, Restore & Migration Plugin – Backup Sites Safely

CVE-2026-4305

The Royal WordPress Backup & Restore Plugin plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'wpr_pending_template' parameter in all versions up to, and including, 1.0.16 due to insufficient input validation. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick an administrator into performing an action such as clicking on a link.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (19.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Wproyal Royal Wordpress Backup, Restore & Migration Plugin – Backup Sites Safely — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-4305?: CVE-2026-4305 is a medium-severity vulnerability in Wproyal Royal Wordpress Backup, Restore & Migration Plugin – Backup Sites Safely, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-04-10.
How severe is CVE-2026-4305?: Medium severity. CVSS v3 base score is 6.1 out of 10.