CVE-2026-123657 ProfilePress < 4.17.6 - Unauthenticated Inactive Membership Plan Enrollment via Negative Plan ID
Unauthenticated visitors can sign up to deactivated ProfilePress membership plans and gain their role; WordPress sites using it should care.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Harmful if only installed
- No
- Needs a specific call
- No
- Fix
- None listed
What is CVE-2026-123657?
CVE-2026-123657 is a medium-severity missing authorization vulnerability in Unknown ProfilePress, published on 11 Nov 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The ProfilePress WordPress plugin before 4.17.6 does not reject negative membership plan identifiers before checking whether a plan is active, allowing unauthenticated visitors to sign up for membership plans an administrator has deactivated and receive the role attached to them.
Weakness: CWE-862
Which versions are affected by CVE-2026-123657?
An affected version is exposed as installed. No special setting or call is needed.
How do I fix CVE-2026-123657?
No fix has been published for CVE-2026-123657 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-123657 being exploited?
There is no known exploitation of CVE-2026-123657 in the wild and no public exploit code.
Sources
Also known as GHSA-4jxj-r57j-r92m.