high8.8
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 escap…
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| Simple Membership WordPress Plugin | before 4.7.5 |
Versions were read from the advisory text. No structured product data has been published for this record yet.