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CVE-2026-120489NVD
Vulnerability Summary
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.
CVSS v4.0 Base Metrics — Score 5.3 (MEDIUM)
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredLow
User InteractionNone
Confidentiality (Vulnerable System)None
Integrity (Vulnerable System)Low
Availability (Vulnerable System)None
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)None
CVSS v3.1 Base Metrics — Score 4.3 (MEDIUM)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone
Affected & Patched Versions
- Outline Outline < 1.12.0
- Outline Outline 1.12.0
External References
- https://github.com/outline/outline/security/advisories/GHSA-h6ff-rw9x-5mq2
- https://github.com/outline/outline/commit/d249b34e8e5fd465d542cad87190d411fdcbd5dc
- https://github.com/outline/outline/releases/tag/v1.12.0
- https://github.com/outline/outline/blob/v1.11.0/server/commands/documentCreator.ts#L135-L143
- https://www.vulncheck.com/advisories/outline-before-1.12.0-incorrect-authorization-via-authorizedocumentpublish-detached-draft