CVE-2023-2317

moderate-risk
Published 2023-08-19

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.

Do I need to act?

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49.3% chance of exploitation in next 30 days
EPSS score — higher than 51% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.6/10 High
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Typora

References (4)

Exploit https://starlabs.sg/advisories/23/23-2317/
Vendor Advisory https://support.typora.io/What's-New-1.6/
Exploit https://starlabs.sg/advisories/23/23-2317/
Vendor Advisory https://support.typora.io/What's-New-1.6/
49
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 18/34 · Moderate
Exposure 5/34 · Minimal