Outline up to 1.11.x authorizeDocumentPublish improper authorization

Summaryinfo

A vulnerability labeled as problematic has been found in Outline up to 1.11.x. This affects the function authorizeDocumentPublish. Such manipulation leads to improper authorization. This vulnerability is documented as CVE-2026-120489. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Outline up to 1.11.x. It has been rated as problematic. Affected by this issue is the function authorizeDocumentPublish. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is integrity, and availability. CVE summarizes:

Outline before 1.12.0 contains an incorrect authorization vulnerability in authorizeDocumentPublish() that allows authenticated members to publish documents into private collections without write access. Attackers can detach a child document via documents.unpublish, retaining parentDocumentId, then call documents.update with a private collection UUID to inject phishing content.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-120489 since 11/02/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

Upgrading to version 1.12.0 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• Outline

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11

Website

• Product: https://github.com/outline/outline/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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