CVE-2025-64487
Privilege Escalation in Outline Document Management System Before
Publication date: 2026-02-11
Last updated on: 2026-02-20
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| getoutline | outline | to 1.1.0 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-269 | The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2025-64487 is a high-severity privilege escalation vulnerability in the Outline document management system affecting versions up to and including v1.0.1.
The vulnerability arises from inconsistent authorization checks between user and group membership management endpoints within the document sharing functionality.
This flaw allows an attacker to escalate privileges improperly due to inadequate verification of user permissions, classified under CWE-269 (Improper Privilege Management).
The issue is fixed in version 1.1.0 by implementing proper authorization checks to prevent unauthorized privilege escalation.
How can this vulnerability impact me? :
This vulnerability can allow an attacker to escalate their privileges within the Outline document management system.
As a result, the attacker could gain unauthorized access to documents or perform actions reserved for higher-privileged users.
This could lead to unauthorized disclosure or modification of sensitive information.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
To mitigate the privilege escalation vulnerability in the Outline document management system, you should upgrade to version 1.1.0 or later, where the issue has been fixed by implementing proper authorization checks.