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CVE

CVE-2026-11855 — Simple Membership [simple-membership] < 4.7.5

CVE Vulnerability Type Severity Affected Fixed in Published Status
CVE-2026-11855 Simple Membership [simple-membership] < 4.7.5 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Unknown < 4.7.5 4.7.5 2026-07-06

CVE-2026-11855

The Simple Membership WordPress plugin before 4.7.5 does not verify the authenticity of Stripe webhook requests when no signing secret is configured, nor escape a value taken from them before outputting it in an administrator notice, allowing unauthenticated attackers to inject arbitrary web scripts that execute in the context of a logged-in administrator.

Source: CVE.org

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