Authenticated privilege escalation through unvalidated cookies
Published Oct 9, 2025 · Updated Oct 9, 2025
Privilege escalation in Microsoft PlayFab allows remote authenticated users to gain elevated privileges through network requests. Microsoft identifies improper privilege management and reliance on cookies without validation or integrity checking, but has not disclosed the affected endpoint or faulty operation. A low-privileged PlayFab account is required; successful exploitation compromises hosted data confidentiality and integrity and can interrupt the service.
Summary
What happened
Privilege escalation in Microsoft PlayFab allows remote authenticated users to gain elevated privileges through network requests. Microsoft identifies improper privilege management and reliance on cookies without validation or integrity checking, but has not disclosed the affected endpoint or faulty operation. A low-privileged PlayFab account is required; successful exploitation compromises hosted data confidentiality and integrity and can interrupt the service.
The record
- CVE
- CVE-2025-59247
- Published
- Oct 9, 2025
- Updated
- Oct 9, 2025
- Vendor
- Microsoft
- Product
- PlayFab
- Classifications
- CWE-269, CWE-565
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 9, 2025CVE publishedPublication date reported by the CVE source.
- Oct 9, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=N/A
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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