How does CVE-2022-40277 work?

CVE-2022-40277 works by exploiting the lack of proper validation of the schema/protocol of existing links in markdown files opened in Joplin, allowing an attacker to execute arbitrary commands remotely.

What is the severity of CVE-2022-40277?

The severity of CVE-2022-40277 is high, with a CVSS score of 7.8.

Which software versions are affected by CVE-2022-40277?

Joplin version 2.8.8 is affected by CVE-2022-40277.

How can I fix CVE-2022-40277?

To fix CVE-2022-40277, it is recommended to update Joplin to a version that includes the necessary security patches.

Vulnerability/
CVE-2022-40277

high

7.8

CWE

30/9/2022

1/10/2022

23/4/2024

CVE-2022-40277: Input Validation

Q: What is CVE-2022-40277?

CVE-2022-40277 is a vulnerability in Joplin version 2.8.8 that allows an external attacker to execute arbitrary commands remotely on any client that opens a link in a malicious markdown file.

First published: Fri Sep 30 2022(Updated: )

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.

Credit: help@fluidattacks.com help@fluidattacks.com

Affected Software	Affected Version	How to fix
Joplinapp Joplin	=2.8.8
Linux Linux kernel
Canonical Ubuntu Linux	=20.04
npm/joplin	<=2.8.8
All of
Joplinapp Joplin	=2.8.8
Linux Linux kernel
All of
Joplinapp Joplin	=2.8.8
Canonical Ubuntu Linux	=20.04

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Reference Links

Frequently Asked Questions

What is CVE-2022-40277?
CVE-2022-40277 is a vulnerability in Joplin version 2.8.8 that allows an external attacker to execute arbitrary commands remotely on any client that opens a link in a malicious markdown file.
How does CVE-2022-40277 work?
CVE-2022-40277 works by exploiting the lack of proper validation of the schema/protocol of existing links in markdown files opened in Joplin, allowing an attacker to execute arbitrary commands remotely.
What is the severity of CVE-2022-40277?
The severity of CVE-2022-40277 is high, with a CVSS score of 7.8.
Which software versions are affected by CVE-2022-40277?
Joplin version 2.8.8 is affected by CVE-2022-40277.
How can I fix CVE-2022-40277?
To fix CVE-2022-40277, it is recommended to update Joplin to a version that includes the necessary security patches.

collector/nvd-index
agent/type
agent/first-publish-date
collector/github-advisory-latest
source/GitHub
alias/GHSA-mjr5-v9c9-mm7g
alias/CVE-2022-40277
agent/software-canonical-lookup
agent/weakness
agent/severity
agent/last-modified-date
agent/references
agent/description
agent/author
agent/tags
agent/event
collector/nvd-cve
source/NVD
agent/softwarecombine
collector/github-advisory
vendor/joplinapp
canonical/joplinapp joplin
version/joplinapp joplin/2.8.8
vendor/linux
canonical/linux linux kernel
vendor/canonical
canonical/canonical ubuntu linux
version/canonical ubuntu linux/20.04
package-manager/npm

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