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CISA KEV · ACTIVELY EXPLOITED
HIGH severity

CVE-2025-24989 — Power Pages

HIGH

CVE-2025-24989 is a high-severity (CVSS 8.2) CWE-284 vulnerability in microsoft power pages. It is in CISA's Known Exploited Vulnerabilities catalog (added 2025-02-21) — treat it as actively exploited and patch now. No vendor fix is recorded yet; mitigation options are listed below.

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…

Published
Updated
Affected
1 product
Patched
See advisory
Exploits
None indexed
Exploitation data as of Oct 23, 2026 · OSV.dev, NVD, CISA KEV, FIRST.org (EPSS)

Exploitation Status

Actively exploited in the wild

  • Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2025-02-21. Federal agencies were required to remediate by 2025-03-14.
  • A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2025-24989.

EPSS Exploitation Probability

via FIRST.org ↗
1.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs76th percentile — riskier than 76% of all scored CVEsHighest risk
0.00%13.5%27.1%40.6%24.6%1.6%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2025-24989 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 395,249 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Description

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

1 product · 1 configurations
Application
power pagesmicrosoft
all

Detection & mitigation playbook

Vendor / appliance

  1. Detect

    Inventory every microsoft power pages deployment and check each version against the affected-products list above.

  2. Remediation status

    No patch has shipped for CVE-2025-24989 yet — track the microsoft power pages advisory for a fixed release and apply the workarounds below in the meantime.

  3. Mitigate without a patch

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.

Frequently Asked Questions

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.
O3 Security · Runtime Protection

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Actively Exploited: CVE-2025-24989: Power Pages (High 8.2)