CVE-2026-39971: Serendipity has a Host Header Injection allows SMTP header injection via unvalidated HTTP_HOST in Message-ID email...
HIGH
CVSS 7.2
Exploit Available
Published: April 14, 2026 | Last Modified: April 14, 2026
Description
Serendipity has a Host Header Injection allows SMTP header injection via unvalidated HTTP_HOST in Message-ID email header
Ghostwire Analysis — What This Means Practically
- High CVSS score indicates significant risk — exploitation could lead to substantial data exposure or system compromise.
- Exploit code is reported to be available, increasing the likelihood of active exploitation.
This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.
Security Coverage (1 articles)
References