CVE-2024-40643

Public Exploit
Joplin has a parsing error leading to Cross-site Scripting (XSS)

Description

Joplin is a free, open source note taking and to-do application. Joplin fails to take into account that "<" followed by a non letter character will not be considered html. As such it is possible to do an XSS by putting an "illegal" tag within a tag.

Category

9.6
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.40%
Vendor Advisory github.com
Affected: laurent22 joplin
Published at:
Updated at:

References

Link Tags
https://github.com/laurent22/joplin/security/advisories/GHSA-g796-3g6g-jmmc vendor advisory exploit
https://github.com/laurent22/joplin/commit/b220413a9b5ed55fb1f565ac786a5c231da8bc87 patch

Frequently Asked Questions

What is the severity of CVE-2024-40643?
CVE-2024-40643 has been scored as a critical severity vulnerability.
How to fix CVE-2024-40643?
To fix CVE-2024-40643, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-40643 being actively exploited in the wild?
It is possible that CVE-2024-40643 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-40643?
CVE-2024-40643 affects laurent22 joplin.
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