CVE-2025-24989: Microsoft Power Pages Improper Access Control Vulnerability

Critical severity, CVSS 9.8. Actively exploited: in CISA KEV since 2025-02-21. EPSS: 1.6% chance of exploitation in the next 30 days.

An improper access control vulnerability in Power Pages allows an unauthorized attacker to elevate privileges over a network potentially bypassing the user registration control. This vulnerability has already been mitigated in the service and all affected customers have been notified. This update addressed the registration control bypass. Affected customers have been given instructions on reviewing their sites for potential exploitation and clean up methods. If you've not been notified this vulnerability does not affect you.

Affected products

• Microsoft Power Pages: affected versions not specified

Published 2025-02-19. Last modified 2026-06-17.