Vulnerability Description
Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. This vulnerability is caused by adding note titles to the document using React's `dangerouslySetInnerHTML`, without first escaping HTML entities. Joplin lacks a Content-Security-Policy with a restrictive `script-src`. This allows arbitrary JavaScript execution via inline `onclick`/`onload` event handlers in unsanitized HTML. Additionally, Joplin's main window is created with `nodeIntegration` set to `true`, allowing arbitrary JavaScript execution to result in arbitrary code execution. Anyone who 1) receives notes from unknown sources and 2) uses <kbd>ctrl</kbd>-<kbd>p</kbd> to search is impacted. This issue has been addressed in version 3.1.24 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Joplin Project | Joplin | < 3.1.24 |
Related Weaknesses (CWE)
References
- https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-PolicProduct
- https://github.com/laurent22/joplin/blob/2fc9bd476b0d9abcddb0a46f615a48333779d22Product
- https://github.com/laurent22/joplin/commit/360ece6f8873ef81afbfb98b25faad696ffccPatch
- https://github.com/laurent22/joplin/security/advisories/GHSA-9gfv-q6wj-fr3cExploitVendor Advisory
- https://github.com/laurent22/joplin/security/advisories/GHSA-9gfv-q6wj-fr3cExploitVendor Advisory
FAQ
What is CVE-2025-25187?
CVE-2025-25187 is a vulnerability with a CVSS score of 7.8 (HIGH). Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. This vulnerability is caused by adding note titles to the document u...
How severe is CVE-2025-25187?
CVE-2025-25187 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-25187?
Check the references section above for vendor advisories and patch information. Affected products include: Joplin Project Joplin.