CVE-2025-64487: high-severity vulnerability in outline
Outline is vulnerable to privilege escalation vulnerability in document sharing
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.6epss 0.2%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Affected products
outline · outlineRelated CVEs — outline
In the same product, most dangerous first.
CVE-2026-113611MEDIUMOutline before 1.8.0 Information Disclosure via Orphaned Webhook SubscriptionsEPSS 0.5%CVE-2024-40626HIGHStored Cross-site Scripting (XSS) vulnerability in Outline editorEPSS 0.5%CVE-2026-54573MEDIUMAuthorization Bypass in API Key/OAuth Scopes via Path Parsing DiscrepancyEPSS 0.5%CVE-2026-33640CRITICALOutline has a rate limit bypass that allows brute force of email login OTPEPSS 0.5%CVE-2026-25062MEDIUMOutline Affected an Arbitrary File Read via Path Traversal in JSON ImportEPSS 0.4%CVE-2025-58351MEDIUMOutline's Local File Storage Feature can Cause CSP BypassEPSS 0.4%