CVE-2022-40276 (GCVE-0-2022-40276)

Vulnerability from cvelistv5 – Published: 2022-11-03 00:00 – Updated: 2025-05-02 20:10
VLAI?
Summary
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.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE
  • Insecure or unset HTTP headers - Content-Security-Policy
Assigner
References
Impacted products
Vendor Product Version
n/a Zettlr Affected: 2.3.0
Show details on NVD website
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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