Typora fails to properly neutralize JavaScript code.


Typora fails to properly neutralize JavaScript code (CWE-116).

Eiji Mori of Flatt Security Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 4.4 (Medium) [IPA Score]
  • Attack Vector: Local
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 4.3 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
Affected Products

  • Typora versions prior to 1.4.4


Opening a file with the affected product may lead to execute the JavaScript code inside the file.

[Update the Software]
Update the software to the latest version according to the information provided by the developer.

The developer confirms the vulnerability is fixed in Typora versions 1.4.x.
The reporter confirms that Typora version 1.4.4 is not affected.
Vendor Information

CWE (What is CWE?)

  1. No Mapping(CWE-Other) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2022-43668

  1. JVN : JVN#26044739
Revision History

  • [2022/11/21]
      Web page was published