CRITICAL

CVE-2023-2317

CVSS v3

9.6

CRITICAL

EPSS Score

49.3%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

DOM-based XSS in updater/update.html in Typora before 1.6.7 on Windows and Linux allows a crafted markdown file to run arbitrary JavaScript code in the context of Typora main window via loading typora://app/typemark/updater/update.html in <embed> tag. This vulnerability can be exploited if a user opens a malicious markdown file in Typora, or copies text from a malicious webpage and paste it into Typora.

Technical details

Published
8/19/2023

Frequently asked questions

What is CVE-2023-2317?

DOM-based XSS in updater/update.html in Typora before 1.6.7 on Windows and Linux allows a crafted markdown file to run arbitrary JavaScript code in the context of Typora main window via loading typora://app/typemark/updater/update.html in <embed> tag. This vulnerability can be exploited if a user opens a malicious markdown file in Typora, or copies text from a malicious webpage and paste it into Typora.

Is CVE-2023-2317 actively exploited?

Active exploitation of CVE-2023-2317 has not been confirmed. The EPSS score is 49.3%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-2317?

CVE-2023-2317 has a CVSS v3 base score of 9.6 (CRITICAL severity).

Is CVE-2023-2317 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.