CVE-2026-86833 — MetForm < 4.3.1 - Unauthenticated HTML Injection in Notification Emails via Field Shortcodes

CVE-2026-86833

MetForm < 4.3.1 - Unauthenticated HTML Injection in Notification Emails via Field Shortcodes PUBLISHED

Description (CNA)

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 (CNA)

Vendor / product	Versions
Unknown / MetForm	affected 0 before 4.3.1

CWE

No CWE identifiers supplied.

References

https://wpscan.com/vulnerability/6d6850d6-6fdf-4b97-9ccb-c90f9ed01ab0/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.