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CVE-2026-27473

SPIP < 4.4.9 Stored Cross-Site Scripting via Syndicated Sites

Published: Feb 19, 2026Updated: Feb 24, 2026 Sources: CVE List NVDCWE-79
NVD MITRE
6.4CVSSMEDIUM
EPSS Score
0.3%
Top 82.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-79

Affected Products

spipspip
On-premWeb App
Web & CMS Plugins / cms-core
SPIPSPIP
On-premWeb App
Web & CMS Plugins / cms-core
spiposs-projectFRWeb & CMS Plugins

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-9.html
blog.spip.net
https://git.spip.net/spip/spip
git.spip.net
https://www.vulncheck.com/advisories/spip-stored-cross-site-scripting-via-syndicated-sites
vulncheck.com

Timeline

Published
Feb 19, 2026
Last Updated
Feb 24, 2026

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