The vulnerability CVE-2025-47593 affects the Really Simple Under Construction Page plugin by Jonas Hjalmarsson, allowing stored cross-site scripting due to improper input neutralization during web page generation. This enables an attacker with high privileges and requiring user interaction to inject malicious scripts that can impact confidentiality, integrity, and availability to a limited extent. The CVSS 3.1 vector is AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L, indicating network attack vector, low attack complexity, high privileges required, user interaction required, scope changed, and low impact on confidentiality, integrity, and availability. The vulnerability affects versions up to 1.4.6. There is no vendor advisory or patch information provided.

Successful exploitation could allow an attacker with high privileges to inject malicious scripts that execute in the context of users viewing the affected pages, potentially leading to limited data disclosure, modification, or disruption of service. The impact is rated medium with partial loss of confidentiality, integrity, and availability. No known active exploitation has been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, limit administrative access to trusted users only and apply standard XSS mitigations such as input validation and output encoding where possible. Monitor vendor channels for updates regarding patches or official fixes.