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…

PriorityP433medium6.4CVSS 3.1

AVNACLPRLUINSCCLILAN

EPSS

0.26%

17.5th percentile

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.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
debian	spip	< spip 4.4.9+dfsg-1 (forky)	spip 4.4.9+dfsg-1 (forky)
spip	spip	>= 0 < 4.4.11+dfsg-0+deb13u1	4.4.11+dfsg-0+deb13u1
spip	spip	>= 0 < 4.4.9+dfsg-1	4.4.9+dfsg-1
spip	spip	>= 4.4.0 < 4.4.9	4.4.9

CVSS provenance

nvdv3.16.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

nvdv4.05.1MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

osv5.1MEDIUM

vendor_debian5.1MEDIUM

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