CVE-2026-27473

MEDIUM

SPIP 4.4.0-4.4.8 - Stored Cross-Site Scripting via Syndicated Site URL

Title source: llm

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.

References (3)

Core 3

Core References

Various Sources vendor-advisory patch

https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-9.html

Various Sources product

https://git.spip.net/spip/spip

Third Party Advisory third-party-advisory

https://www.vulncheck.com/advisories/spip-stored-cross-site-scripting-via-syndicated-sites

Scores

CVSS v3 6.4

EPSS 0.0026

EPSS Percentile 17.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (1)

spip/spip 4.4.0 - 4.4.9

Published Feb 19, 2026

Tracked Since Feb 19, 2026