What’s Vulnerable › Vulnerabilities

CVE-2021-27231

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-02-16 · updated 2026-06-17

Description

Hestia Control Panel 1.3.5 and below, in a shared-hosting environment, sometimes allows remote authenticated users to create a subdomain for a different customer's domain name, leading to spoofing of services or email messages.

Affected products

• hestiacp Control Panel: through 1.3.5

References

• https://github.com/hestiacp/hestiacp/issues/1622
• https://github.com/sickcodes/security/blob/master/advisories/sick-2021-006.md
• https://sick.codes/sick-2021-006
• https://www.hestiacp.com/
• https://github.com/hestiacp/hestiacp/issues/1622
• https://github.com/sickcodes/security/blob/master/advisories/sick-2021-006.md
• https://sick.codes/sick-2021-006
• https://www.hestiacp.com/

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