SPIP porte_plume plugin versions before 4.30-alpha2, 4.2.13, and 4.1.16
Unauthenticated remote attacker sends crafted HTTP request to porte_plume plugin endpoint to execute arbitrary PHP code
Upgrade SPIP and porte_plume plugin to patched versions: 4.30-alpha2 or later, 4.2.13 or later, or 4.1.16 or later
First command locates porte_plume plugin directory; second command extracts version number - if version is below 4.30-alpha2, 4.2.13, or 4.1.16, system is vulnerable
find /var/www -path '*porte_plume*' -type d 2>/dev/null | head -1 && grep -r 'define.*version' /var/www/*/porte_plume 2>/dev/null | head -1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H