# CVE-2026-123661: ProfilePress WordPress plugin missing authorization in checkout membership plan change

Source: https://junglewise.ai/threats/cve-2026-123661-the-profilepress-wordpress-plugin-before-4-17-4-does-not-check  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-11. Updated: 2026-11-11  
License: CC BY 4.0 with a link back

CVE-2026-123661 · Severity: info · Published 2026-11-11

ProfilePress is a WordPress plugin that manages user memberships and subscriptions. A flaw in versions before 4.17.4 allows users to bypass controls and subscribe to membership plans that the site owner has deactivated. An attacker with any active subscription could gain access to premium content, free user roles, or features that were intentionally disabled.

Technologies: [ProfilePress](https://junglewise.ai/threats/technologies/profilepress). Vendors: [ProfilePress](https://junglewise.ai/threats/vendors/profilepress).

## Quick answers

**Is CVE-2026-123661 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-123661 being exploited in the wild.

**How severe is CVE-2026-123661?** Informational severity, published 11 November 2026.

**Which products and versions are affected?** ProfilePress 4.16.13 through 4.17.3.

**Is there a fix for CVE-2026-123661?** Yes: fixed in 4.17.4. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-123661 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-123661?** Check whether you run ProfilePress 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.

## How to fix

- Fixed in 4.17.4

## Technical details

The plugin fails to validate that a membership plan remains active when processing subscription plan changes through the checkout flow, a missing authorization issue (CWE-862). An authenticated subscriber can change their subscription to any deactivated plan, including those granting user roles. The vulnerability requires an attacker to already hold an active subscription but no admin credentials.

## Affected products

- ProfilePress ProfilePress 4.16.13 through 4.17.3

## Timeline

- 2026-11-09: disclosed
- 2026-11-11: advisory

## References

- [https://wpscan.com/vulnerability/e70de446-003c-4198-9951-e0fb336978f8/](https://wpscan.com/vulnerability/e70de446-003c-4198-9951-e0fb336978f8/)

## Related threats

- [ProfilePress WordPress plugin access control bypass via negative plan ID](https://junglewise.ai/threats/cve-2026-123657-the-profilepress-wordpress-plugin-before-4-17-6-does-not-reject)
- [ProfilePress WordPress plugin access control bypass via REST API](https://junglewise.ai/threats/cve-2026-123656-the-profilepress-wordpress-plugin-before-4-17-6-does-not)
- [ProfilePress reflected XSS in file upload filename parameter](https://junglewise.ai/threats/cve-2026-92551-the-paid-membership-plugin-ecommerce-user-registration-form-login)
- [ProfilePress plugin for WordPress sensitive information exposure](https://junglewise.ai/threats/cve-2026-92536-the-paid-membership-plugin-ecommerce-user-registration-form-login)
- [ProfilePress arbitrary shortcode execution](https://junglewise.ai/threats/cve-2026-85658-the-paid-membership-plugin-ecommerce-user-registration-form-login)