PT-2026-3292 · Unknown · Markdownify

Taurusomar · Published 2026-01-16 · Updated 2026-01-16 · CVE-2021-47837

Positive Technologies (AI Summary)

CVSS v3.1

7.2

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Markdownify version 1.2.0

Description Markdownify version 1.2.0 has a persistent cross-site scripting issue. Attackers can store malicious payloads within markdown files. Uploading crafted markdown files with embedded scripts allows execution when the file is opened, potentially enabling remote code execution.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-47837

Affected Products

Markdownify

References · 7

• 🔥 https://imgur.com/a/T4jBoiS · Exploit
• 🔥 https://exploit-db.com/exploits/49835 · Exploit
• 🔥 https://vulncheck.com/advisories/markdownify-persistent-cross-site-scripting · Exploit
• https://osv.dev/vulnerability/CVE-2021-47837 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47837 · Security Note
• https://github.com/amitmerchant1990/electron-markdownify · Note
• https://twitter.com/CVEnew/status/2012303207758970895 · Twitter Post