CVE-2026-11855
HIGHCVSS v3.1: 8.8 · EPSS: 0.0018 (7.8 percentile)
Source data as of:
At a glance
- Severity
- HIGH
- CVSS
- 8.8 v3.1 · NVD
- EPSS
- 0.0018 (7.8 percentile) · FIRST.org
- CISA KEV
- No
- Attack conditions (CVSS vector)
- NetworkNo privileges · Source: NVD Vector
- Published
- 2026-07-06 · Modified: 2026-07-06
- References
- Jump to references (1)
CVSS / EPSS / KEV
Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources
Description
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.
References
Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.