Is CVE-2026-3453 actively exploited?

No active exploitation of CVE-2026-3453 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-3453 be exploited remotely?

Yes. CVE-2026-3453 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-3453?

CVE-2026-3453 has a CVSS score of 8.1 (HIGH).

HOME VULNERABILITIESCVE-2026-3453

HIGH

CVE-2026-3453

CWE-639Published: March 11, 2026· Updated: Mar 11, 2026

8.1

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:12.1th

Official Description

The ProfilePress plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.16.11. This is due to missing ownership validation on the change_plan_sub_id parameter in the process_checkout() function. The ppress_process_checkout AJAX handler accepts a user-controlled subscription ID intended for plan upgrades, loads the subscription record, and cancels/expires it without verifying the subscription belongs to the requesting user. This makes it possible for authenticated attackers, with Subscriber-level access and above, to cancel and expire any other user's active subscription via the change_plan_sub_id parameter during checkout, causing immediate loss of paid access for victims.

NVD Source

Technical Analysis

CVE-2026-3453 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.