Vulnerability Description
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
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Getoutline | Outline | < 0.77.3 |
Related Weaknesses (CWE)
References
- https://github.com/outline/outline/security/advisories/GHSA-888c-mvg8-v6whExploitVendor Advisory
- https://github.com/outline/outline/security/advisories/GHSA-888c-mvg8-v6whExploitVendor Advisory
FAQ
What is CVE-2024-40626?
CVE-2024-40626 is a vulnerability with a CVSS score of 7.3 (HIGH). 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...
How severe is CVE-2024-40626?
CVE-2024-40626 has been rated HIGH with a CVSS base score of 7.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-40626?
Check the references section above for vendor advisories and patch information. Affected products include: Getoutline Outline.