CVE-2026-59539 WordPress Paid Member Subscriptions plugin <= 3.0.7 - Insecure Direct Object References (IDOR) vulnerability

High 7.5 Published Updated

Subscribers can access or modify other users' data due to missing authorization checks in the Paid Member Subscriptions plugin.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-59539?

CVE-2026-59539 is a high-severity missing authorization vulnerability in Cozmoslabs Paid Member Subscriptions, published on 27 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Subscriber Insecure Direct Object References (IDOR) in Paid Member Subscriptions <= 3.0.7 versions.

Weakness: CWE-639

Which versions are affected by CVE-2026-59539?

How do I fix CVE-2026-59539?

No fix has been published for CVE-2026-59539 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-2026-59539 being exploited?

There is no known exploitation of CVE-2026-59539 in the wild and no public exploit code.

Sources

Also known as GHSA-vfqc-mpfj-gp23.

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