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5.1
SPIP 4.4.8 and earlier allows malicious syndication URLs in private area
CVE-2026-27473
Summary
SPIP, a content management system, has a security flaw that allows an attacker to inject malicious code into the system. An attacker can exploit this vulnerability by setting a malicious link in a syndicated site. This could allow them to execute code on the system when other administrators view the site details. To protect your system, update to version 4.4.9 or later.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| spip | spip | > 4.4.0 , <= 4.4.9 | – |
Original title
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 a...
Original 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.
nvd CVSS3.1
6.4
nvd CVSS4.0
5.1
Vulnerability type
CWE-79
Cross-site Scripting (XSS)
- https://git.spip.net/spip/spip Product
- https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-9.html Vendor Advisory Release Notes
- https://www.vulncheck.com/advisories/spip-stored-cross-site-scripting-via-syndic... Third Party Advisory
Published: 19 Feb 2026 · Updated: 11 Mar 2026 · First seen: 6 Mar 2026