PT-2020-16648 · Marktext · Marktext

Published 2020-10-16 · Updated 2020-10-26 · CVE-2020-27176

Positive Technologies (AI Summary)

CVSS v3.1

9.6

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Mark Text versions prior to 0.16.3

Description The issue is related to Mutation XSS, which can lead to Remote Code Execution. It is associated with the "source code mode" feature, where HTML is parsed despite HTML support not being a primary function of the product.

Recommendations For Mark Text versions prior to 0.16.3, update to version 0.16.3 or later to resolve the issue. As a temporary workaround, consider disabling the "source code mode" feature until a patch is available. Restrict access to this feature to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2020-27176

Affected Products

Marktext

References · 4

• 🔥 https://github.com/marktext/marktext/issues/2360 · Exploit
• https://osv.dev/vulnerability/CVE-2020-27176 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-27176 · Security Note
• https://t.me/cibsecurity/15311 · Telegram Post