Microsoft Power Pages Improper Access Control Vulnerability
Microsoft — Microsoft Power Pages
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.
8.2
1.6%
Vector breakdown
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N/E:U/RL:O/RC:C
- Published
- Feb 19, 2025
- Modified
- Feb 13, 2026
- Added to KEV
- Feb 21, 2025
- Federal patch due
- Mar 14, 2025
CISA required action
Apply mitigations per vendor instructions, follow BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Weakness classification
Proof-of-concept & exploitation references
Weaponization
Public repositories whose name or description references CVE-2025-24989, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit — cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
No public GitHub repositories referencing CVE-2025-24989 were found at last check. Absence here is not proof no exploit exists — see the references below for vendor advisories and write-ups.
References
How this class of flaw gets exploited
Frequently asked questions
What is CVE-2025-24989?
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.
How severe is CVE-2025-24989?
CVE-2025-24989 has a CVSS base score of 8.2 out of 10 (CVSS 3.1).
Is CVE-2025-24989 actively exploited in the wild?
Yes. CVE-2025-24989 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Feb 21, 2025, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2025-24989?
1.6% - meaning FIRST.org's EPSS model estimates a 1.6% probability this vulnerability will be exploited in the wild within 30 days (74% percentile among all scored CVEs).
What type of vulnerability is CVE-2025-24989?
CVE-2025-24989 is classified under CWE-284 (CWE-284: Improper Access Control).
Cross-checked against
Impactr finds and proves whether CVE-2025-24989 — or flaws like it — are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.