| Reporter | Title | Published | Views | Family All 12 |
|---|---|---|---|---|
 | CVE-2026-39971 | 14 Apr 202623:35 | – | attackerkb |
 | CVE-2026-39971 | 13 Apr 202622:17 | – | circl |
 | Serendipity 安全漏洞 | 15 Apr 202600:00 | – | cnnvd |
 | CVE-2026-39971 Serendipity: Host Header Injection leads to SMTP header injection via unvalidated HTTP_HOST | 14 Apr 202623:35 | – | cvelist |
 | EUVD-2026-22811 | 14 Apr 202622:32 | – | euvd |
 | Serendipity has a Host Header Injection allows SMTP header injection via unvalidated HTTP_HOST in Message-ID email header | 14 Apr 202622:32 | – | github |
 | CVE-2026-39971 | 15 Apr 202604:17 | – | nvd |
 | GHSA-458G-Q4FH-MJ6R Serendipity has a Host Header Injection allows SMTP header injection via unvalidated HTTP_HOST in Message-ID email header | 14 Apr 202622:32 | – | osv |
 | PT-2026-32967 | 14 Apr 202600:00 | – | ptsecurity |
 | CVE-2026-39971 | 5 Jun 202619:12 | – | redhatcve |
10
Node
OR
[
{
"vendor": "s9y",
"product": "Serendipity",
"versions": [
{
"version": "< 2.6.0",
"status": "affected"
}
]
}
]| Parameter | Position | Path | Description | CWE |
|---|---|---|---|---|
| HTTP_HOST | header | include/functions.inc.php | Host header control allows injection into the Message-ID SMTP header due to unvalidated HTTP_HOST usage in email sending, enabling identity spoofing and threading manipulation. | CWE-113 |
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
17 Jun 2026 10:42Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.2
EPSS0.00255
SSVC