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    CVE-2026-77806

    SPIP before 4.4.21 allows unauthenticated remote attackers to execute arbitrary code, as exploited in the wild in August 2026. This is related to code injection via an X-Spip-Filtre HTTP request header that is mishandled by analyse_resultat_skel.

    Published:Aug 21, 2026
    Last Modified:Aug 27, 2026
    EPS:Aug 21, 2026
    EPSS Score:0.04201
    CVSS Score:9.8

    Affected Products

    Vendor
    Spip
    Product
    Spip

    Exploits

    https://github.com/CuteeCat/CVE-2026-77806

    Related CVEs

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    CVE-2026-8430 (CVSS 9.2) — SPIP versions prior to 4.4.14 contain a remote code execution vulnerability in the public space that is limite…
    CVE-2026-8429 (CVSS 8.7) — SPIP versions prior to 4.4.14 contain a remote code execution vulnerability in the private space that allows a…
    CVE-2026-33549 (CVSS 6.7) — SPIP 4.4.10 through 4.4.12 before 4.4.13 allows unintended privilege assignment (of administrator privileges) …
    CVE-2026-22205 (CVSS 8.7) — SPIP versions prior to 4.4.10 contain an authentication bypass vulnerability caused by PHP type juggling that …
    CVE-2026-22206 (CVSS 8.7) — SPIP versions prior to 4.4.10 contain a SQL injection vulnerability that allows authenticated low-privilege us…
    CVE-2026-27743 (CVSS 9.3) — The SPIP referer_spam plugin versions prior to 1.3.0 contain an unauthenticated SQL injection vulnerability in…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High