Joplin is a free, open source note taking and to-do application. A Cross-site Scripting (XSS) vulnerability allows an untrusted note opened in safe mode to execute arbitrary code. `packages/renderer/MarkupToHtml.ts` renders note content in safe mode by surrounding it with <pre> and </pre>, without escaping any interior HTML tags. Thus, an attacker can create a note that closes the opening <pre> tag, then includes HTML that runs JavaScript. Because the rendered markdown iframe has the same origin as the toplevel document and is not sandboxed, any scripts running in the preview iframe can access the top variable and, thus, access the toplevel NodeJS `require` function. `require` can then be used to import modules like fs or child_process and run arbitrary commands. This issue has been addressed in version 2.12.9 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
Metrics
Affected Vendors & Products
References
History
Fri, 11 Apr 2025 17:45:00 +0000
Type | Values Removed | Values Added |
---|---|---|
First Time appeared |
Joplin Project
Joplin Project joplin |
|
CPEs | cpe:2.3:a:joplin_project:joplin:*:*:*:*:*:-:*:* | |
Vendors & Products |
Joplin Project
Joplin Project joplin |

Status: PUBLISHED
Assigner: GitHub_M
Published: 2024-06-21T19:45:19.982Z
Updated: 2024-08-02T17:23:27.755Z
Reserved: 2023-07-10T17:51:29.610Z
Link: CVE-2023-37898

Updated: 2024-08-02T17:23:27.755Z

Status : Analyzed
Published: 2024-06-21T20:15:11.583
Modified: 2025-04-11T17:19:44.633
Link: CVE-2023-37898

No data.