CVE-2023-39703

Name: CVE-2023-39703
Creator: NVD / NIST
Published: 2023-09-01T13:15:08.243+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.46%

Last modified Jun 17, 2026

CVE-2023-39703 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A cross site scripting (XSS) vulnerability in the Markdown Editor component of Typora v1.6.7 allows attackers to execute arbitrary code via uploading a crafted Markdown file.. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

Description

A cross site scripting (XSS) vulnerability in the Markdown Editor component of Typora v1.6.7 allows attackers to execute arbitrary code via uploading a crafted Markdown file.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.46%

36.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Typora	Typora	< 1.6.7

References

https://c0olw.github.io/2023/07/31/Typora-XSS-Vulnerability/Exploit, Third Party Advisory
https://c0olw.github.io/2023/07/31/Typora-XSS-Vulnerability/Exploit, Third Party Advisory

Timeline

Published: Sep 1, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-39703?

A cross site scripting (XSS) vulnerability in the Markdown Editor component of Typora v1.6.7 allows attackers to execute arbitrary code via uploading a crafted Markdown file.

How severe is CVE-2023-39703?

CVE-2023-39703 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.

How do I fix CVE-2023-39703?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-39703?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST