XSS in Joplin Project
CVE-2023-38506
Joplin is a free, open source note taking and to-do application. A Cross-site Scripting (XSS) vulnerability allows pasting untrusted data into the rich text editor to execute arbitrary code. HTML pasted into the rich text editor is not sanitized (or not sanitized properly). As such, the `onload` attribute of pasted images can execute arbitrary code. Because the TinyMCE editor frame does not use the `sandbox` attribute, such scripts can access NodeJS's `require` through the `top` variable. From this, an attacker can run arbitrary commands. This issue has been addressed in version 2.12.10 and users are advised to upgrade. There are no known workarounds for this vulnerability.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.004 (36.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L.
Affected products
- Joplin_project Joplin
- Laurent22 Joplin — versions < 2.12.10
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-38506?
- CVE-2023-38506 is a high-severity vulnerability in Joplin Project, classified under Cross-site Scripting. CVSS score: 8.2/10. Published 2024-06-21.
- How severe is CVE-2023-38506?
- High severity. CVSS v3 base score is 8.2 out of 10.