Threats / Microsoft / CVE-2025-24989
CVE-2025-24989
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-08-04
Microsoft Power Pages vulnerability
Microsoft Power Pages contains an improper access control vulnerability allowing unauthorized privilege escalation and potential bypass of user registration controls.
Verdict
Today item — known-exploited.
An attacker can exploit improper access control in Power Pages to gain elevated privileges over a network and potentially circumvent registration restrictions, enabling unauthorized access to protected resources and functionality.
CISA KEV Yes · 2025-02-215EPSS 0.01722 (verify live)6CVSS 8.23CISA SSVC Exploitation: active · Automatable: no · Impact: total4
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
6 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-02-21).
Probability (EPSS)
EPSS 0.01722 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 8.2 (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) · Affected: Microsoft, Power Pages. Confirm exact fixed builds in the vendor advisory.CVSS — CNA-assigned (CVE.org), version 3.1, set at disclosure.
Weakness (CWE)
Mapped to CWE-284 Improper Access Control — weakness family: Authorization / access control.CWE — CNA-assigned (CVE.org); the weakness class drives how the flaw is exploited.
CISA SSVC (triage disposition)
Exploitation: active · Automatable: no · Technical Impact: totalCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.
Currency of the record
CISA added this to its KEV catalog 2 days after the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I identify that Power Pages enforces insufficient access control checks on privilege-escalation endpoints.
Business
Attackers bypass authentication and registration controls, gaining unauthorized administrative or elevated user access.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I craft requests that exploit the access control weakness to escalate my privileges without proper authorization.
Business
Compromised user accounts or unauthenticated access enable lateral movement and data exfiltration within the Power Pages environment.
3
Lateral reach — past segmentation narrative 3
Attacker
I leverage elevated privileges to access sensitive data, modify configurations, or perform administrative actions.
Business
Confidentiality, integrity, and availability of Power Pages applications and hosted data are compromised, affecting business operations and customer trust.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05