Quick answers
- Is CVE-2026-1869 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-1869 being exploited in the wild.
- How severe is CVE-2026-1869?
- Medium severity, with a CVSS score of 6.5, published 26 June 2026.
- Which products and versions are affected?
- WPEverest User Registration <= 5.2.0.
- Is there a fix for CVE-2026-1869?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-1869 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-1869?
- Check whether you run WPEverest User Registration at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The User Registration & Membership plugin for WordPress is vulnerable to missing authorization due to insufficient validation checks in the confirm_payment() function. This flaw allows unauthenticated remote attackers to manipulate the payment confirmation process. By sending a crafted request to the vulnerable function, an attacker can trick the system into marking a transaction as successful without a valid payment. This results in the unauthorized activation of paid membership tiers and access to restricted content. The issue affects all versions up to and including 5.2.0.
Affected products
- WPEverest User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder <= 5.2.0
Timeline
- 2026-06-26: disclosed
- 2026-06-26: advisory