CVE-2022-40277 — HIGH (7.8)

Vulnerability 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 Score

7.8

HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Joplinapp	Joplin	2.8.8
Linux	Linux Kernel	-
Canonical	Ubuntu Linux	20.04

Related Weaknesses (CWE)

CWE-20

References

https://fluidattacks.com/advisories/skrillex/ExploitThird Party Advisory
https://github.com/laurent22/joplinProduct
https://fluidattacks.com/advisories/skrillex/ExploitThird Party Advisory
https://github.com/laurent22/joplinProduct

FAQ

What is CVE-2022-40277?

CVE-2022-40277 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 applicati...

How severe is CVE-2022-40277?

CVE-2022-40277 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2022-40277?

Check the references section above for vendor advisories and patch information. Affected products include: Joplinapp Joplin, Linux Linux Kernel, Canonical Ubuntu Linux.