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    CVE-2026-88798

    The Really Simple Security WordPress plugin before 9.8.3 does not validate a client-supplied address value before using it as a storage key in one of its own options, allowing unauthenticated attackers to grow that option without bound and to slow the site's handling of missing pages.

    Published:Sep 18, 2026
    Last Modified:Sep 18, 2026
    EPS:Sep 18, 2026
    EPSS Score:0.00145
    CVSS Score:5.3

    Affected Products

    Vendor
    Really-simple-plugins
    Product
    Really Simple Security
    Vendor
    Wordpress
    Product
    Wordpress

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-81766 (CVSS 6.6) — The Really Simple Security WordPress plugin before 9.8.0 does not check that the user is allowed to install R…
    CVE-2026-8293 (CVSS 7.5) — The Really Simple Security WordPress plugin before 9.5.10.1 does not enforce the second-factor challenge in t…
    CVE-2026-27397 (CVSS 6.5) — Authorization Bypass Through User-Controlled Key vulnerability in Really Simple Plugins B.V. Really Simple Sec…
    CVE-2024-10924 (CVSS 9.8) — The Really Simple Security (Free, Pro, and Pro Multisite) plugins for WordPress are vulnerable to authenticati…

    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