Vulnerability · Published Aug 5, 2026 · Assigned by Wordfence

CVE-2026-5108Super Progressive Web Apps <= 2.2.43 - Authenticated (Administrator+) Stored Cross-Site Scripting via Offline Message Setting

Medium 4.4

In plain English

A medium-severity cross-site scripting in Super Progressive Web Apps from superpwa. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).

Severity (CVSS 3.1)4.4Medium

Exploit odds (30 days)0.3%top 76.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
superpwa	Super Progressive Web Apps	0 – through 2.2.43

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

In plain English

Official description

Affected products (as reported)

References