Unrated severityNVD Advisory· Published Feb 19, 2026· Updated Mar 5, 2026
SPIP < 4.4.9 Stored Cross-Site Scripting via Syndicated Sites
CVE-2026-27473
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.
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Affected products
2Patches
Vulnerability mechanics
References
2- blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-9.htmlmitrevendor-advisorypatch
- www.vulncheck.com/advisories/spip-stored-cross-site-scripting-via-syndicated-sitesmitrethird-party-advisory
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