Getoutline: >> Outline >> 0.18.0 Security Vulnerabilities
Outline is a service that allows for collaborative documentation. Prior to 1.1.0, a vulnerability was found in Outline's WebSocket authentication mechanism that allows suspended users to maintain or establish real-time WebSocket connections and continue receiving sensitive operational updates after their account has been suspended. This vulnerability is fixed in 1.1.0.
CVSS Score
5.3
EPSS Score
0.001
Published
2026-02-11
Outline is a service that allows for collaborative documentation. Prior to 1.4.0, during the JSON import process, the value of attachments[].key from the imported JSON is passed directly to path.join(rootPath, node.key) and then read using fs.readFile without validation. By embedding path traversal sequences such as ../ or absolute paths, an attacker can read arbitrary files on the server and import them as attachments. This vulnerability is fixed in 1.4.0.
CVSS Score
5.5
EPSS Score
0.0
Published
2026-02-11
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 Score
7.6
EPSS Score
0.0
Published
2026-02-11
Outline is an open source, collaborative document editor. A type confusion issue was found in ProseMirror’s rendering process that leads to a Stored Cross-Site Scripting (XSS) vulnerability in Outline. An authenticated user can create a document containing a malicious JavaScript payload. When other users view this document, the malicious Javascript can execute in the origin of Outline. Outline includes CSP rules to prevent third-party code execution, however in the case of self-hosting and having your file storage on the same domain as Outline a malicious payload can be uploaded as a file attachment and bypass those CSP restrictions. This issue has been addressed in release version 0.77.3. Users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS Score
7.3
EPSS Score
0.002
Published
2024-07-16
An issue in Outline <= v0.76.1 allows attackers to execute a session hijacking attack via user interaction with a crafted magic sign-in link.
CVSS Score
8.8
EPSS Score
0.003
Published
2024-07-09
An issue in Outline <= v0.76.1 allows attackers to redirect a victim user to a malicious site via intercepting and changing the state cookie.
CVSS Score
6.1
EPSS Score
0.002
Published
2024-07-09
Cross-site Scripting (XSS) - Stored in GitHub repository outline/outline prior to 0.70.1.
CVSS Score
8.5
EPSS Score
0.001
Published
2023-07-07
Cross-site Scripting (XSS) - Stored in GitHub repository outline/outline prior to v0.64.4.
CVSS Score
7.3
EPSS Score
0.003
Published
2022-07-07