Command injection in Ghost - #VU128202
Published: September 17, 2021 / Updated: April 27, 2026
Vulnerability identifier: #VU128202
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-77
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Ghost
Ghost
Software vendor:
Ghost
Ghost
Description
The vulnerability allows a remote attacker to inject commands.
The vulnerability exists due to command injection in the sendmail email transport configuration when using the sendmail transport for mail delivery. A remote attacker can trigger the vulnerable nodemailer sendmail handling to inject commands.
Only sites explicitly configured to use the sendmail transport are vulnerable.
Remediation
Install security update from vendor's website.