VulnerabilityModified
CVE-2022-40276
Zettlr version 2.3.0 allows an external attacker to remotely obtain arbitrary local files on any client that attempts to view a malicious markdown file through Zettlr.
MEDIUM 5.5EPSS 0.38%
Does this matter?
Lower severity and a low EPSS score (0.38%). Track it; it rarely justifies an emergency change on its own.
Description
Zettlr version 2.3.0 allows an external attacker to remotely obtain arbitrary local files on any client that attempts to view a malicious markdown file through Zettlr. This is possible because the application does not have a CSP policy (or at least not strict enough) and/or does not properly validate the contents of markdown files before rendering them.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- EPSS
- 0.38% probability · 31th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- zettlr/zettlr
- Source
- help@fluidattacks.com
References
- https://fluidattacks.com/advisories/avicii/Exploit, Third Party Advisory
- https://github.com/Zettlr/ZettlrProduct, Third Party Advisory
- https://fluidattacks.com/advisories/avicii/Exploit, Third Party Advisory
- https://github.com/Zettlr/ZettlrProduct, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.