CVE-2026-77647

CVSS 9.8 (critical) · published 2026-08-20

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.

Weakness: CWE-94

Source: NVD CVE-2026-77647

References

• https://blog.spip.net/Mise-a-jour-critique-de-securite-sortie-de-SPIP-4-4-20.html
• https://lists.debian.org/debian-security-announce/2026/msg00359.html

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