Vulnerability · Published Jan 21, 2026 · Assigned by VulnCheck
CVE-2021-47873VestaCP < 0.9.8-25 - Stored Cross-Site Scripting
High 7.2
In plain English
A high-severity cross-site scripting in VestaCP from VestaCP. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).
Severity (CVSS 3.1)7.2High
Exploit odds (30 days)0.2%top 86.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
VestaCP versions prior to 0.9.8-25 contain a cross-site scripting vulnerability in the IP interface configuration that allows attackers to inject malicious scripts. Attackers can exploit the 'v_interface' parameter by sending a crafted POST request to the add/ip/ endpoint with a stored XSS payload.
Affected products (as reported)
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-49662 exploit
- VestaCP Official Vendor Homepage product
- VestaCP Alternative Download Site product
- VulnCheck Advisory: VestaCP < 0.9.8-25 - Stored Cross-Site Scripting third-party-advisory