SPIP before 4.4.20 allows unauthenticated remote attackers to execute arbitrary code, as exploited in the wild in August 2026. This is related to incorrect identification of <?php blocks, and var_export's mishandling of certain cases such as presence of a '<' character.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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