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Vulnerability record · CVE-2023-2317 · published 19 August 2023

CVE-2023-2317: Typora cross-site scripting vulnerability

Typora · Typora

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.

9.6 CVSS 3.1 Critical EPSS 2.4% · top 16.3% CWE-79 · Cross-site scripting
9.6CVSS 3.1 base score
2.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://starlabs.sg/advisories/23/23-2317/ ExploitMitigationThird Party Advisory
https://support.typora.io/What's-New-1.6/ Vendor Advisory
https://starlabs.sg/advisories/23/23-2317/ ExploitMitigationThird Party Advisory
https://support.typora.io/What's-New-1.6/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.6CVE-2019-20374Typora cross-site scripting vulnerabilityA mutation cross-site scripting (XSS) issue in Typora through 0.9.9.31.2 on macOS and through 0.9.81 on Linux leads to Remote Code Execution through …EPSS 2.3%7.8CVE-2023-1003Typora code injection vulnerabilityA vulnerability, which was classified as critical, was found in Typora up to 1.5.5 on Windows. Affected is an unknown function of the component WSH J…EPSS 0.37%7.8CVE-2019-12172Typora path traversal vulnerabilityTypora 0.9.9.21.1 (1913) allows arbitrary code execution via a modified file: URL syntax in the HREF attribute of an AREA element, as demonstrated by…EPSS 1.8%7.8CVE-2019-12137Typora path traversal vulnerabilityTypora 0.9.9.24.6 on macOS allows directory traversal, for execution of arbitrary programs, via a file:/// or ../ substring in a shared note.EPSS 6.5%7.4CVE-2020-18336Typora cross-site scripting vulnerabilityCross Site Scripting (XSS) vulnerability found in Typora v.0.9.65 allows a remote attacker to obtain sensitive information via the PDF file exporting…EPSS 0.57%7.4CVE-2023-2316Typora path traversal vulnerabilityImproper path handling in Typora before 1.6.7 on Windows and Linux allows a crafted webpage to access local files and exfiltrate them to remote web s…EPSS 0.66%7.3CVE-2024-33300Typora cross-site scripting vulnerabilityTypora v1.0.0 through v1.7 version (below) Markdown editor has a cross-site scripting (XSS) vulnerability, which allows attackers to execute arbitrar…EPSS 0.55%6.5CVE-2023-2971Typora path traversal vulnerabilityImproper path handling in Typora before 1.7.0-dev on Windows and Linux allows a crafted webpage to access local files and exfiltrate them to remote w…EPSS 0.49%

Source: NIST National Vulnerability Database (record CVE-2023-2317), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.