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Vulnerability record · CVE-2022-40277 · published 30 September 2022

CVE-2022-40277: Joplinapp joplin improper input validation vulnerability

Joplinapp · Joplin

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.

7.8 CVSS 3.1 High EPSS 0.54% · top 57.1% CWE-20 · Improper input validation
7.8CVSS 3.1 base score
0.54%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://fluidattacks.com/advisories/skrillex/ ExploitThird Party Advisory
https://github.com/laurent22/joplin Product
https://fluidattacks.com/advisories/skrillex/ ExploitThird Party Advisory
https://github.com/laurent22/joplin Product

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-40277), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.