The Royal WordPress Backup, Restore & Migration Plugin suffers from a reflected cross-site scripting vulnerability due to improper neutralization of input in the 'wpr_pending_template' parameter. This vulnerability affects all versions up to and including 1.0.16. An unauthenticated attacker can craft a malicious link that, if clicked by an administrator, executes arbitrary web scripts in the context of the administrator's browser session. This can lead to limited confidentiality and integrity impacts but does not affect availability. The vulnerability is tracked as CVE-2026-4305 with a CVSS 3.1 base score of 6.1 (medium severity). No official fix or patch has been published yet, and no known exploits have been reported.

Successful exploitation allows an attacker to execute arbitrary scripts in the context of an administrator's browser session, potentially leading to theft of sensitive information or manipulation of site content. The impact is limited to confidentiality and integrity with no direct availability impact. Since the attacker must trick an administrator into clicking a malicious link, exploitation requires user interaction.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, administrators should exercise caution when clicking on links, especially those received from untrusted sources. Monitoring for updates from the vendor or plugin maintainers is recommended to apply any forthcoming patches promptly.