CVE-2026-1461 (GCVE-0-2026-1461)

Vulnerability from cvelistv5 – Published: 2026-02-19 09:26 – Updated: 2026-04-08 16:51
VLAI
Title
Simple Membership <= 4.7.0 - Unauthenticated Improper Handling of Missing Values
Summary
The Simple Membership plugin for WordPress is vulnerable to Improper Handling of Missing Values in all versions up to, and including, 4.7.0 via the Stripe webhook handler. This is due to the plugin only validating webhook signatures when the stripe-webhook-signing-secret setting is configured, which is empty by default. This makes it possible for unauthenticated attackers to forge Stripe webhook events to manipulate membership subscriptions, including reactivating expired memberships without payment or canceling legitimate subscriptions, potentially leading to unauthorized access and service disruption.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-20 20:40 UTC
CWE
  • CWE-230 - Improper Handling of Missing Values
Assigner
Wordfence CNA under the mitre root
CNA scorecard C 65/100 over 2294 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
wpinsider-1 Simple Membership Affected: 0 , ≤ 4.7.0 (semver)
guessed Create a notification for this product.
Credits
Rafał
Show details on NVD website
To clipboard 

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