CVE-2021-47963CWE-79

Anote 1.0 Persistent Cross-Site Scripting Leading to Code Execution

Medium · published May 15, 2026

CVSS v4.0
5.1
EPSS
0%
Percentile
39.6
In the wild
Unconfirmed
What it is

Anote 1.0 contains a persistent cross-site scripting vulnerability that allows attackers to execute arbitrary code by injecting malicious payloads into markdown files stored within the application. Attackers can craft malicious markdown files with embedded JavaScript that executes system commands when opened, enabling remote code execution on the victim's computer.

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
EPSS
0.00469 · 39.6th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-05-15T18:36Z
EPSS history
Timeline
  • 15 MAY 18:36Z
    Anote 1.0 Persistent Cross-Site Scripting Leading to Code Execution
    cvelistv5