Vulnerability · Published May 15, 2026 · Assigned by VulnCheck
CVE-2021-47963Anote 1.0 Persistent Cross-Site Scripting Leading to Code Execution
High 7.2
In plain English
A high-severity cross-site scripting in Anote from AnotherNote. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).
Severity (CVSS 3.1)7.2High
Exploit odds (30 days)0.5%top 59.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| AnotherNote | Anote | 1.0 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
References
- ExploitDB-49836 exploit
- Official Product Homepage product
- VulnCheck Advisory: Anote 1.0 Persistent Cross-Site Scripting Remote Code Execution third-party-advisory