MW WP Form permits Editor-level stored XSS against administrators
MW WP Form before 5.1.6 does not sanitize and escape some form settings before displaying them on an administration page. An Editor can store script in the affected settings, and that script executes when a higher-privilege user such as an Administrator opens the page.
- Component
- MW WP Form
- Plugin slug
mw-wp-form- Affected
- < 5.1.6
- Safe version
5.1.6- Published
- Aug 30, 2026
This CVE was published Aug 30, 2026 and is one of 11 known issues for this plugin.
Update, patch or deactivate.
Update MW WP Form to 5.1.6 or later, review form settings changed by Editor accounts, and inspect administrator activity after affected settings pages were viewed.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The MW WP Form WordPress plugin before 5.1.6 does not sanitise and escape some of its form settings before outputting them back in an admin dashboard page, which could allow users with a role as low as Editor to perform Stored Cross-Site Scripting attacks against high privilege users such as admin.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N