CVE-2026-123657: ProfilePress WordPress plugin access control bypass via negative plan ID

CVE-2026-123657 · Severity: info · Published 2026-11-11

ProfilePress is a membership management plugin for WordPress that controls user signup and role assignment. Unauthenticated attackers can exploit a flaw in plan identifier validation to enroll in deactivated membership plans and receive administrative roles they should not have access to.

Technologies: ProfilePress. Vendors: ProfilePress.

Quick answers

Is CVE-2026-123657 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-123657 being exploited in the wild.
How severe is CVE-2026-123657?
Informational severity, published 11 November 2026.
Which products and versions are affected?
ProfilePress before 4.17.6.
Is there a fix for CVE-2026-123657?
Yes: fixed in 4.17.6. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-123657 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-123657?
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: 4.17.6

Technical details

The plugin fails to reject negative membership plan identifiers before validating whether a plan is active, allowing an attacker to bypass plan status checks. An unauthenticated user can supply a negative plan ID to sign up for deactivated plans and receive associated roles. This is a broken access control vulnerability (CWE-862) with no authentication required.

Affected products

  • ProfilePress ProfilePress before 4.17.6

Timeline

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

References

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