An elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation. An attacker who successfully exploited the vulnerability could bypass authentication and achieve improper access.
To exploit this vulnerability, an attacker would need to modify the token.
The update addresses the vulnerability by modifying how Microsoft SharePoint Server and Skype for Business Server validate tokens.
Metrics
Affected Vendors & Products
References
History
Mon, 23 Feb 2026 18:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | An elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation. An attacker who successfully exploited the vulnerability could bypass authentication and achieve improper access. To exploit this vulnerability, an attacker would need to modify the token. The update addresses the vulnerability by modifying how Microsoft SharePoint Server and Skype for Business Server validate tokens. | An elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation. An attacker who successfully exploited the vulnerability could bypass authentication and achieve improper access. To exploit this vulnerability, an attacker would need to modify the token. The update addresses the vulnerability by modifying how Microsoft SharePoint Server and Skype for Business Server validate tokens. |
Status: PUBLISHED
Assigner: microsoft
Published: 2020-07-14T22:53:56.000Z
Updated: 2024-08-04T06:24:59.514Z
Reserved: 2019-11-04T00:00:00.000Z
Link: CVE-2020-1025
No data.
Status : Modified
Published: 2020-07-14T23:15:11.447
Modified: 2026-02-23T18:23:01.917
Link: CVE-2020-1025
No data.