The SPIP template composer/compiler in SPIP 3.1.2 and earlier allows remote authenticated users to execute arbitrary PHP code by uploading an HTML file with a crafted (1) INCLUDE or (2) INCLURE tag and then accessing it with a valider_xml action.
http://www.securityfocus.com/bid/93451
http://www.openwall.com/lists/oss-security/2016/10/08/6
http://www.openwall.com/lists/oss-security/2016/10/07/5
http://www.openwall.com/lists/oss-security/2016/10/05/17
https://sysdream.com/news/lab/2016-10-19-spip-3-1-2-template-compiler-composer-php-code-execution-cve-2016-7998/
https://core.spip.net/projects/spip/repository/revisions/23192
https://core.spip.net/projects/spip/repository/revisions/23189
https://core.spip.net/projects/spip/repository/revisions/23186
Source: Mitre, NVD
Published: 2017-01-18
Updated: 2025-04-20
Base Score: 6.5
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P
Severity: Medium
Base Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.2474