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16 vulnerabilities found for outline by outline
CVE-2026-33640 (GCVE-0-2026-33640)
Vulnerability from nvd – Published: 2026-03-26 20:56 – Updated: 2026-03-30 11:40
VLAI?
Title
Outline has a rate limit bypass that allows brute force of email login OTP
Summary
Outline is a service that allows for collaborative documentation. Outline implements an Email OTP login flow for users not associated with an Identity Provider. Starting in version 0.86.0 and prior to version 1.6.0, Outline does not invalidate OTP codes based on amount or frequency of invalid submissions, rather it relies on the rate limiter to restrict attempts. Consequently, identified bypasses in the rate limiter permit unrestricted OTP code submissions within the codes lifetime. This allows attackers to perform brute force attacks which enable account takeover. Version 1.6.0 fixes the issue.
Severity ?
CWE
- CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
References
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CVE-2026-28506 (GCVE-0-2026-28506)
Vulnerability from nvd – Published: 2026-03-17 15:30 – Updated: 2026-03-17 15:45
VLAI?
Title
Outline's Information Disclosure in Activity Logs allows User Enumeration of Private Drafts
Summary
Outline is a service that allows for collaborative documentation. Prior to 1.5.0, the events.list API endpoint, used for retrieving activity logs, contains a logic flaw in its filtering mechanism. It allows any authenticated user to retrieve activity events associated with documents that have no collection (e.g., Private Drafts, Deleted Documents), regardless of the user's actual permissions on those documents. While the document content is not directly exposed, this vulnerability leaks sensitive metadata (such as Document IDs, user activity timestamps, and in some specific cases like the Document Title of Permanent Delete). Crucially, leaking valid Document IDs of deleted drafts removes the protection of UUID randomness, making High-severity IDOR attacks (such as the one identified in documents.restore) trivially exploitable by lowering the attack complexity. Version 1.5.0 fixes the issue.
Severity ?
4.3 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
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CVE-2026-24901 (GCVE-0-2026-24901)
Vulnerability from nvd – Published: 2026-03-17 15:28 – Updated: 2026-03-17 15:46
VLAI?
Title
Outline's IDOR allows unauthorized viewing and seizing of private deleted drafts
Summary
Outline is a service that allows for collaborative documentation. Prior to 1.4.0, an Insecure Direct Object Reference (IDOR) vulnerability in the document restoration logic allows any team member to unauthorizedly restore, view, and seize ownership of deleted drafts belonging to other users, including administrators. By bypassing ownership validation during the restore process, an attacker can access sensitive private information and effectively lock the original owner out of their own content. Version 1.4.0 fixes the issue.
Severity ?
8.1 (High)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
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CVE-2026-25062 (GCVE-0-2026-25062)
Vulnerability from nvd – Published: 2026-02-11 20:23 – Updated: 2026-02-11 20:53
VLAI?
Title
Outline Affected an Arbitrary File Read via Path Traversal in JSON Import
Summary
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.
Severity ?
5.5 (Medium)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
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CVE-2025-68663 (GCVE-0-2025-68663)
Vulnerability from nvd – Published: 2026-02-11 20:29 – Updated: 2026-02-12 21:20
VLAI?
Title
Outline has a suspended user authentication bypass via WebSocket connections
Summary
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.
Severity ?
CWE
- CWE-287 - Improper Authentication
Assigner
References
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|---|---|---|---|---|---|---|---|---|
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CVE-2025-64487 (GCVE-0-2025-64487)
Vulnerability from nvd – Published: 2026-02-11 20:25 – Updated: 2026-02-11 20:52
VLAI?
Title
Outline is vulnerable to privilege escalation vulnerability in document sharing
Summary
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.
Severity ?
7.6 (High)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
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CVE-2025-58351 (GCVE-0-2025-58351)
Vulnerability from nvd – Published: 2025-09-03 03:20 – Updated: 2025-09-03 15:44
VLAI?
Title
Outline's Local File Storage Feature can Cause CSP Bypass
Summary
Outline is a service that allows for collaborative documentation. In versions 0.72.0 through 0.83.0, Outline introduced a feature which facilitates local file system storage capabilities as an optional file storage strategy. This feature allowed a CSP bypass as well as a ContentType bypass that might facilitate further attacks. In the case of self-hosting and using Outline FILE_STORAGE=local on the same domain as the Outline application, a malicious payload can be uploaded as a file attachment and bypass those CSP restrictions, allowing script execution within the context of another user. This is fixed in version 0.84.0.
Severity ?
6.8 (Medium)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2024-40626 (GCVE-0-2024-40626)
Vulnerability from nvd – Published: 2024-07-16 17:03 – Updated: 2024-08-02 04:33
VLAI?
Title
Stored Cross-site Scripting (XSS) vulnerability in Outline editor
Summary
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.
Severity ?
7.3 (High)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
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CVE-2026-33640 (GCVE-0-2026-33640)
Vulnerability from cvelistv5 – Published: 2026-03-26 20:56 – Updated: 2026-03-30 11:40
VLAI?
Title
Outline has a rate limit bypass that allows brute force of email login OTP
Summary
Outline is a service that allows for collaborative documentation. Outline implements an Email OTP login flow for users not associated with an Identity Provider. Starting in version 0.86.0 and prior to version 1.6.0, Outline does not invalidate OTP codes based on amount or frequency of invalid submissions, rather it relies on the rate limiter to restrict attempts. Consequently, identified bypasses in the rate limiter permit unrestricted OTP code submissions within the codes lifetime. This allows attackers to perform brute force attacks which enable account takeover. Version 1.6.0 fixes the issue.
Severity ?
CWE
- CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
References
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|---|---|---|---|---|---|---|---|---|
|
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CVE-2026-28506 (GCVE-0-2026-28506)
Vulnerability from cvelistv5 – Published: 2026-03-17 15:30 – Updated: 2026-03-17 15:45
VLAI?
Title
Outline's Information Disclosure in Activity Logs allows User Enumeration of Private Drafts
Summary
Outline is a service that allows for collaborative documentation. Prior to 1.5.0, the events.list API endpoint, used for retrieving activity logs, contains a logic flaw in its filtering mechanism. It allows any authenticated user to retrieve activity events associated with documents that have no collection (e.g., Private Drafts, Deleted Documents), regardless of the user's actual permissions on those documents. While the document content is not directly exposed, this vulnerability leaks sensitive metadata (such as Document IDs, user activity timestamps, and in some specific cases like the Document Title of Permanent Delete). Crucially, leaking valid Document IDs of deleted drafts removes the protection of UUID randomness, making High-severity IDOR attacks (such as the one identified in documents.restore) trivially exploitable by lowering the attack complexity. Version 1.5.0 fixes the issue.
Severity ?
4.3 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
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CVE-2026-24901 (GCVE-0-2026-24901)
Vulnerability from cvelistv5 – Published: 2026-03-17 15:28 – Updated: 2026-03-17 15:46
VLAI?
Title
Outline's IDOR allows unauthorized viewing and seizing of private deleted drafts
Summary
Outline is a service that allows for collaborative documentation. Prior to 1.4.0, an Insecure Direct Object Reference (IDOR) vulnerability in the document restoration logic allows any team member to unauthorizedly restore, view, and seize ownership of deleted drafts belonging to other users, including administrators. By bypassing ownership validation during the restore process, an attacker can access sensitive private information and effectively lock the original owner out of their own content. Version 1.4.0 fixes the issue.
Severity ?
8.1 (High)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
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CVE-2025-68663 (GCVE-0-2025-68663)
Vulnerability from cvelistv5 – Published: 2026-02-11 20:29 – Updated: 2026-02-12 21:20
VLAI?
Title
Outline has a suspended user authentication bypass via WebSocket connections
Summary
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.
Severity ?
CWE
- CWE-287 - Improper Authentication
Assigner
References
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|---|---|---|---|---|---|---|---|---|
|
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CVE-2025-64487 (GCVE-0-2025-64487)
Vulnerability from cvelistv5 – Published: 2026-02-11 20:25 – Updated: 2026-02-11 20:52
VLAI?
Title
Outline is vulnerable to privilege escalation vulnerability in document sharing
Summary
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.
Severity ?
7.6 (High)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
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CVE-2026-25062 (GCVE-0-2026-25062)
Vulnerability from cvelistv5 – Published: 2026-02-11 20:23 – Updated: 2026-02-11 20:53
VLAI?
Title
Outline Affected an Arbitrary File Read via Path Traversal in JSON Import
Summary
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.
Severity ?
5.5 (Medium)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
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CVE-2025-58351 (GCVE-0-2025-58351)
Vulnerability from cvelistv5 – Published: 2025-09-03 03:20 – Updated: 2025-09-03 15:44
VLAI?
Title
Outline's Local File Storage Feature can Cause CSP Bypass
Summary
Outline is a service that allows for collaborative documentation. In versions 0.72.0 through 0.83.0, Outline introduced a feature which facilitates local file system storage capabilities as an optional file storage strategy. This feature allowed a CSP bypass as well as a ContentType bypass that might facilitate further attacks. In the case of self-hosting and using Outline FILE_STORAGE=local on the same domain as the Outline application, a malicious payload can be uploaded as a file attachment and bypass those CSP restrictions, allowing script execution within the context of another user. This is fixed in version 0.84.0.
Severity ?
6.8 (Medium)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2024-40626 (GCVE-0-2024-40626)
Vulnerability from cvelistv5 – Published: 2024-07-16 17:03 – Updated: 2024-08-02 04:33
VLAI?
Title
Stored Cross-site Scripting (XSS) vulnerability in Outline editor
Summary
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.
Severity ?
7.3 (High)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
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{
"containers": {
"adp": [
{
"affected": [
{
"cpes": [
"cpe:2.3:a:getoutline:outline:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "outline",
"vendor": "getoutline",
"versions": [
{
"lessThan": "0.77.3",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-40626",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-07-16T18:16:32.464561Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-07-16T18:22:19.680Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-02T04:33:11.960Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "https://github.com/outline/outline/security/advisories/GHSA-888c-mvg8-v6wh",
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://github.com/outline/outline/security/advisories/GHSA-888c-mvg8-v6wh"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "outline",
"vendor": "outline",
"versions": [
{
"status": "affected",
"version": "\u003c 0.77.3"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Outline is an open source, collaborative document editor. A type confusion issue was found in ProseMirror\u2019s 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.\n"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-07-16T17:03:39.883Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/outline/outline/security/advisories/GHSA-888c-mvg8-v6wh",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/outline/outline/security/advisories/GHSA-888c-mvg8-v6wh"
}
],
"source": {
"advisory": "GHSA-888c-mvg8-v6wh",
"discovery": "UNKNOWN"
},
"title": "Stored Cross-site Scripting (XSS) vulnerability in Outline editor"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2024-40626",
"datePublished": "2024-07-16T17:03:39.883Z",
"dateReserved": "2024-07-08T16:13:15.510Z",
"dateUpdated": "2024-08-02T04:33:11.960Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}