What is CVE-2022-40277?

CVE-2022-40277 is a high-severity vulnerability in Joplinapp Joplin, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2022-09-30.

How severe is CVE-2022-40277?

High severity. CVSS v3 base score is 7.8 out of 10.

Improper input validation in Joplinapp Joplin

CVE-2022-40277

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2022-09-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (43.0th percentile), scored 2026-09-23.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000

Affected products

Joplinapp Joplin — versions 2.8.8
Linux Kernel
Canonical Ubuntu Linux — versions 20.04
Joplin — versions 2.8.8

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

fluidattacks.com/advisories/skrillex/ (Exploit, Third Party Advisory)
github.com/laurent22/joplin (Product)

Frequently asked questions

What is CVE-2022-40277?: CVE-2022-40277 is a high-severity vulnerability in Joplinapp Joplin, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2022-09-30.
How severe is CVE-2022-40277?: High severity. CVSS v3 base score is 7.8 out of 10.