Super Progressive Web Apps <= 2.2.43 - Authenticated (Administrator+) Stored Cross-Site Scripting via Offline Message Setting
| CVE | CVE-2026-5108 |
|---|---|
| CVSS | 4.4 (Medium) |
| Publicly Published | August 4, 2026 |
| Last Updated | August 5, 2026 |
| Researcher |
lucsob
|
Description
The Super Progressive Web Apps plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `superpwa_settings[offline_message_txt]` setting in all versions up to, and including, 2.2.43. This is due to insufficient input sanitization and output escaping. The offline message value is stored without sanitization, passed to the frontend via `wp_localize_script()` without escaping, and rendered using `innerHTML` in the JavaScript snackbar component. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user triggers the offline snackbar.
Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.
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Vulnerability Details for Super Progressive Web Apps
| Software Type | Plugin |
|---|---|
| Software Slug | super-progressive-web-apps (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 2.2.44, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Super Progressive Web Apps
| # | Title | CVE ID | CVSS | Researchers | Date |
|---|---|---|---|---|---|
| 1 | Super Progressive Web Apps <= 2.2.21 - Missing Authorization | CVE-2023-48277 | Abdi Pranata | November 22, 2023 | |
| 2 | Super Progressive Web Apps <= 2.2.8 - Missing Authorization | November 29, 2022 |
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