CVE-2021-47836CWE-79
Markdown Explorer 0.1.1 - Persistent Cross-Site Scripting
Medium · published January 16, 2026
What it is
Markdown Explorer 0.1.1 contains a cross-site scripting vulnerability that allows attackers to inject malicious code through file uploads and editor inputs. Attackers can upload markdown files with embedded JavaScript payloads that execute in the application's privileged renderer context, allowing code execution on the host.
The record
Technical detail
- CVSS v4.0
- 5.1 · MEDIUM
- Vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- EPSS
- 0.00347 · 27.1th percentile
- Weakness
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- Published
- 2026-01-16T19:09Z
EPSS history
Timeline