CVE-2026-27473— SPIP < 4.4.9 Stored Cross-Site Scripting via Syndicated Sites
Possible ATT&CK Techniques 3AI
T1189 · Drive-by Compromise T1071 · Application Layer Protocol T1059 · Command and Scripting InterpreterGet alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-27473
Vulnerability Information
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Vulnerability Title
SPIP < 4.4.9 Stored Cross-Site Scripting via Syndicated Sites
Source: CVE Program / CVE List V5
Vulnerability Description
SPIP before 4.4.9 allows Stored Cross-Site Scripting (XSS) via syndicated sites in the private area. The #URL_SYNDIC output is not properly sanitized on the private syndicated site page, allowing an attacker who can set a malicious syndication URL to inject persistent scripts that execute when other administrators view the syndicated site details.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
SPIP 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SPIP是SPIP开源的一个用于创建 Internet 站点的免费软件。 SPIP 4.4.9之前版本存在安全漏洞，该漏洞源于私有联合站点页面上对#URL_SYNDIC输出的清理不当，可能导致存储型跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-27473
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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Same Patch Batch · SPIP · 2026-02-19 · 11 CVEs total
| CVE-2025-71243 | 9.8 CRITICAL | SPIP Saisies Plugin < 5.11.1 Remote Code Execution |
| CVE-2026-27475 | 8.1 HIGH | SPIP < 4.4.9 Insecure Deserialization |
| CVE-2025-71242 | 6.5 MEDIUM | SPIP < 4.3.6 Authorization Bypass Leading to Content Disclosure |
| CVE-2026-26223 | 6.1 MEDIUM | SPIP < 4.4.8 Cross-Site Scripting via Iframe Tags in Private Area |
| CVE-2026-27474 | 6.1 MEDIUM | SPIP < 4.4.9 Cross-Site Scripting in Private Area (Incomplete Fix) |
| CVE-2025-71241 | 6.1 MEDIUM | SPIP < 4.3.6 Cross-Site Scripting in Private Area |
| CVE-2025-71244 | 6.1 MEDIUM | SPIP < 4.4.5 Open Redirect via Login Form |
| CVE-2026-26345 | 5.4 MEDIUM | SPIP < 4.4.8 Cross-Site Scripting in Public Area |
| CVE-2025-71240 | 5.4 MEDIUM | SPIP < 4.2.15 Cross-Site Scripting via Code Tags |
| CVE-2026-27472 | 4.3 MEDIUM | SPIP < 4.4.9 Blind Server-Side Request Forgery via Syndicated Sites |
IV. Related Vulnerabilities
V. Comments for CVE-2026-27473
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