Smart Popup by Supsystic <= 1.12.0 - Unauthenticated Privilege Escalation to Administrator
| CVE | CVE-2026-18322 |
|---|---|
| CVSS | 8.8 (High) |
| Publicly Published | August 4, 2026 |
| Last Updated | August 5, 2026 |
| Researcher |
daroo
|
Description
The Smart Popup by Supsystic plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.12.0. This is due to a permission map collision in the `havePermissions()` function in `classes/frame.php`, where `array_merge()` overwrites the popup module's administrator-restricted method list with the base controller's value, silently removing `save` from protected actions; this is compounded by the subscription confirmation email embedding the same generic `pps_nonce` that the unauthenticated `wp_ajax_nopriv_save` endpoint accepts, and by the complete absence of any server-side role allowlist in `createWpSubscriber()`. This makes it possible for unauthenticated attackers to submit a crafted POST request to `admin-ajax.php` using a nonce obtained from a public subscription confirmation email, setting `params[tpl][sub_wp_create_user_role]` to `administrator` via the exposed `popupControllerPps::save()` action, and then triggering the stored confirmation flow to create a persistent WordPress Administrator account with attacker-chosen credentials.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for Smart Popup by Supsystic
| Software Type | Plugin |
|---|---|
| Software Slug | popup-by-supsystic (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 1.13.0, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Smart Popup by Supsystic
| # | Title | CVE ID | CVSS | Researchers | Date |
|---|---|---|---|---|---|
| 1 | Popup by Supsystic <= 1.10.29 - Authenticated (Admin+) Remote Code Execution | CVE-2024-52434 | Hakiduck | November 15, 2024 | |
| 2 | Popup by Supsystic <= 1.10.27 - Missing Authorization | CVE-2024-31421 | Steven Julian | April 10, 2024 | |
| 3 | Popup by Supsystic <= 1.10.19 - Missing Authorization to Sensitive Information Exposure | CVE-2023-46197 | Rafshanzani Suhada | October 18, 2023 | |
| 4 | Popup by Supsystic <= 1.10.19 - Cross-Site Request Forgery | CVE-2023-39997 | Rafshanzani Suhada | August 11, 2023 | |
| 5 | Popup by Supsystic <= 1.10.18 - Prototype Pollution | CVE-2023-3186 | drwtsn | June 23, 2023 | |
| 6 | Popup by Supsystic <= 1.10.8 - Sensitive Information Disclosure | CVE-2022-0424 | Felipe de Avila | April 18, 2022 | |
| 7 | Popup by Supsystic <= 1.10.4 - Reflected Cross-Site Scripting | CVE-2021-24275 | 0xB9 | April 19, 2021 | |
| 8 | Popup by Supsystic < 1.7.9 - Cross-Site Request Forgery | CVE-2016-10915 | September 7, 2016 |
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