CVE-2023-2317

Public Exploit
Typora DOM-Based Cross-site Scripting leading to Remote Code Execution

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.

Category

8.6
CVSS
Severity: High
CVSS 3.1 •
EPSS 42.73% Top 5%
Vendor Advisory typora.io
Affected: Typora Typora
Published at:
Updated at:

References

Link Tags
https://support.typora.io/What's-New-1.6/ release notes vendor advisory
https://starlabs.sg/advisories/23/23-2317/ mitigation third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2023-2317?
CVE-2023-2317 has been scored as a high severity vulnerability.
How to fix CVE-2023-2317?
To fix CVE-2023-2317, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-2317 being actively exploited in the wild?
It is possible that CVE-2023-2317 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~43% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-2317?
CVE-2023-2317 affects Typora Typora.
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