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CVE-2026-26345— SPIP < 4.4.8 Cross-Site Scripting in Public Area

Quick assessment

Affected
SPIP SPIP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SPIP是SPIP开源的一个用于创建 Internet 站点的免费软件。 SPIP 4.4.8之前版本存在安全漏洞，该漏洞源于echapper_html_suspect函数清理不足，可能导致存储型跨站脚本攻击。

CVSS 5.4 · Medium EPSS 0.34% · P26

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript
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I. Basic Information for CVE-2026-26345

Vulnerability Information
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Vulnerability Title
SPIP < 4.4.8 Cross-Site Scripting in Public Area
Source: CVE Program / CVE List V5
Vulnerability Description
SPIP before 4.4.8 contains a stored cross-site scripting (XSS) vulnerability in the public area triggered in certain edge-case usage patterns. The echapper_html_suspect() function does not adequately sanitize user-controlled content, allowing authenticated users with content-editing privileges (e.g., author-level roles and above) to inject malicious scripts. The injected payload may be rendered across multiple pages within the framework and execute in the browser context of other users, including administrators. Successful exploitation can allow attackers to perform actions in the security context of the victim user, including unauthorized modification of application state. This vulnerability is not mitigated by the SPIP security screen.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/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 4.4.8之前版本存在安全漏洞，该漏洞源于echapper_html_suspect函数清理不足，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

Vendor Product Affected Versions CPE Subscribe
SPIP SPIP 4.4.0 ~ 4.4.8 -

II. Public POCs for CVE-2026-26345

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III. Intelligence Information for CVE-2026-26345

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Vendor Advisories for CVE-2026-26345 (1)

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-2026-27473 6.4 MEDIUM SPIP < 4.4.9 Stored Cross-Site Scripting via Syndicated Sites
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-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

Same product: SPIP
Same vendor: SPIP

V. Comments for CVE-2026-26345

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