medium5.4
CVE-2026-86833
The MetForm WordPress plugin before 4.3.1 does not sanitize or escape submitted form-field values before inserting them into the HTML body of its email notific…
Impact
The MetForm WordPress plugin before 4.3.1 does not sanitize or escape submitted form-field values before inserting them into the HTML body of its email notifications, allowing unauthenticated attackers to inject arbitrary markup into the administrator and submitter notification emails the site sends.
Affected products
| Product | Affected versions |
|---|---|
| MetForm WordPress Plugin | before 4.3.1 |
Versions were read from the advisory text. No structured product data has been published for this record yet.