CVE-2025-64487

What it is

Outline is a service that allows for collaborative documentation. Prior to 1.1.0, a privilege escalation vulnerability exists in the Outline document management system due to inconsistent authorization checks between user and group membership management endpoints. This vulnerability is fixed in 1.1.0.

At a glance

Exploitability

Can be exploited over the network with a low-privilege account, but needs a user to act. High risk of data exposure.

Exploit odds

0.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-02-11 21:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 09:54 UTC Last updatedMost recent change to the record

Details

Published

2026-02-11 21:16 UTC

Last modified

2026-06-17 09:54 UTC

Exploit probability

0.2% · EPSS, next 30 days

Weakness

CWE-269 · Improper privilege management

Record status

Analyzed

Affected

• Getoutline Outline < 1.1.0

Attack profile CVSS 3.1 · 7.6

Attack vector

Network

Complexity

Low

Privileges needed

Low

User interaction

Required

Scope

Changed

Confidentiality

High

Integrity

Low

Availability

None