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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.52%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.52% probability · 42th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- joplinapp/joplin
- Source
- help@fluidattacks.com
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.