CVE-2022-40277

Name: CVE-2022-40277
Creator: NVD / NIST
Published: 2022-09-30T17:15:13.277+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.49%

Last modified Jun 17, 2026

CVE-2022-40277 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Joplin version 2.8.8 allows an external attacker to execute arbitrary commands remotely on any client that opens a link in a malicious markdown file, via Joplin. This is possible because the application does not properly validate the schema/protocol of existing links in the markdown file before passing them to the 'shell.openExternal' function.. EPSS estimates a 0.49% chance of exploitation in the next 30 days.

Description

Joplin version 2.8.8 allows an external attacker to execute arbitrary commands remotely on any client that opens a link in a malicious markdown file, via Joplin. This is possible because the application does not properly validate the schema/protocol of existing links in the markdown file before passing them to the 'shell.openExternal' function.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.49%

38.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Joplinapp	Joplin	2.8.8

References

https://fluidattacks.com/advisories/skrillex/Exploit, Third Party Advisory
https://github.com/laurent22/joplinProduct
https://fluidattacks.com/advisories/skrillex/Exploit, Third Party Advisory
https://github.com/laurent22/joplinProduct

Timeline

Published: Sep 30, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-40277?

How severe is CVE-2022-40277?

CVE-2022-40277 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.

How do I fix CVE-2022-40277?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-40277?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST