PT-2021-10234 · Typora · Typora

U2400 · Published 2021-08-19 · Updated 2021-08-23 · CVE-2020-18748

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Typora version 0.9.65

Description: The issue is related to Cross Site Scripting (XSS) that allows attackers to execute arbitrary code via mathjax syntax. This is due to a mathjax configuration error in the mathematical formula blocks.

Recommendations: For version 0.9.65, consider disabling the mathjax syntax in mathematical formula blocks as a temporary workaround until a patch is available. Restrict access to mathematical formula blocks to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2020-18748

Affected Products

Typora

References · 5

• 🔥 https://github.com/typora/typora-issues/issues/2226 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-18748 · Security Note
• https://osv.dev/vulnerability/CVE-2020-18748 · Vendor Advisory
• https://github.com/typora · Note
• https://t.me/cibsecurity/27603 · Telegram Post