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.

CVSS v3.1

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1

8.2 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L

EPSS

0.42% chance of exploitation in the next 30 days, 35th percentile

Published

2024-06-21

Updated

2024-08-02

Proof-of-concept exploits (1)

• laurent22/joplin/security/advisories/GHSA-m59c-9rrj-c399

References

• CVE Record
• NVD entry

Related

• CVE-2018-1000534
• CVE-2023-37898
• CVE-2023-39517
• CVE-2023-45673
• CVE-2024-40643
• CVE-2024-49362