CVE-2026-27473

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.

CVSS v3 6.4 MEDIUM

6.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.1 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-9.html	Vendor Advisory Release Notes
https://git.spip.net/spip/spip	Product
https://www.vulncheck.com/advisories/spip-stored-cross-site-scripting-via-syndicated-sites	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:spip:spip:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-02-19 19:22

Updated : 2026-02-24 19:44

NVD link : CVE-2026-27473

Mitre link : CVE-2026-27473

CVE.ORG link : CVE-2026-27473

JSON object : View

Products Affected

spip

spip

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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