Is CVE-2026-18322 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-18322 being exploited in the wild.

How severe is CVE-2026-18322?

High severity, with a CVSS score of 8.8, published 5 August 2026.

Which products and versions are affected?

Supsystic Smart Popup up to and including 1.12.0.

Is there a fix for CVE-2026-18322?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-18322 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-18322?

Check whether you run Supsystic Smart Popup 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.

CVE-2026-18322: Supsystic Smart Popup privilege escalation via permission collision

CVE-2026-18322 · Severity: high · CVSS 8.8 · Published 2026-08-05

The Smart Popup by Supsystic plugin for WordPress contains a vulnerability that allows unauthenticated attackers to create administrator accounts. An attacker can intercept a public subscription confirmation email, extract a token from it, and use that token to bypass security checks and create a new WordPress Administrator account with attacker-controlled credentials. This grants complete administrative control over the affected WordPress site, enabling theft of all site data, malware injection, or site takeover.

Technologies: Supsystic Smart Popup. Vendors: Supsystic.

Quick answers

Is CVE-2026-18322 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-18322 being exploited in the wild.
How severe is CVE-2026-18322?: High severity, with a CVSS score of 8.8, published 5 August 2026.
Which products and versions are affected?: Supsystic Smart Popup up to and including 1.12.0.
Is there a fix for CVE-2026-18322?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-18322 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-18322?: Check whether you run Supsystic Smart Popup 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.

Technical details

The vulnerability is a privilege escalation due to a permission map collision in the `havePermissions()` function in `classes/frame.php`. The `array_merge()` operation incorrectly overwrites the popup module's administrator-restricted method list with the base controller's value, removing `save` from the list of protected actions. Combined with a generic `pps_nonce` embedded in public subscription confirmation emails and a complete absence of server-side role validation in the `createWpSubscriber()` function, unauthenticated attackers can submit a crafted POST request to `admin-ajax.php` with the nonce from a confirmation email. By setting `params[tpl][sub_wp_create_user_role]` to `administrator`, the exposed `popupControllerPps::save()` action allows creation of a persistent WordPress Administrator account with arbitrary credentials.

Affected products

Supsystic Smart Popup up to and including 1.12.0

Timeline

2026-08-05: disclosed

References

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