{"id":"UBUNTU-CVE-2026-27473","details":"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.","modified":"2026-05-20T16:24:51.375794097Z","published":"2026-02-19T19:22:00Z","upstream":["CVE-2026-27473"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-27473"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-27473"},{"type":"REPORT","url":"https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-9.html"},{"type":"REPORT","url":"https://git.spip.net/spip/spip"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/spip-stored-cross-site-scripting-via-syndicated-sites"}],"affected":[{"package":{"name":"spip","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/spip?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.20-1","3.0.21-1","3.0.21-1ubuntu1","3.0.21-1ubuntu1+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"spip","binary_version":"3.0.21-1ubuntu1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27473.json"}},{"package":{"name":"spip","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/spip?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.4-3","3.1.4-4~deb9u3build0.18.04.1","3.1.4-4~deb9u5build0.18.04.1","3.1.4-4~deb9u5ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"spip","binary_version":"3.1.4-4~deb9u5ubuntu0.1~esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27473.json"}},{"package":{"name":"spip","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/spip?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.4-1","3.2.5-1","3.2.7-1","3.2.7-1ubuntu0.1","3.2.7-1ubuntu0.1+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"3.2.7-1ubuntu0.1+esm2","binary_name":"spip"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27473.json"}},{"package":{"name":"spip","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/spip?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.11-3","3.2.12-1","4.0.2-1","4.0.4-1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.0.4-1","binary_name":"spip"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27473.json"}},{"package":{"name":"spip","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/spip?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.1.11+dfsg-1","4.1.12+dfsg-1","4.1.13+dfsg-1","4.1.15+dfsg-1","4.2.9+dfsg-2"],"ecosystem_specific":{"binaries":[{"binary_version":"4.2.9+dfsg-2","binary_name":"spip"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27473.json"}},{"package":{"name":"spip","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/spip?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.8+dfsg-1","4.4.3+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"spip","binary_version":"4.4.3+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27473.json"}},{"package":{"name":"spip","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/spip?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.3+dfsg-1","4.4.6+dfsg-1","4.4.7+dfsg-1","4.4.8+dfsg-1","4.4.9+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.4.9+dfsg-1","binary_name":"spip"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27473.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N"},{"type":"Ubuntu","score":"medium"}]}