What is GHSA-fv77-662p-ggvf?

GHSA-fv77-662p-ggvf is a security advisory published by GitHub Security Advisories with Medium severity. The MetForm WordPress plugin before 4.3.1 does not sanitize or escape submitted form-field values...

Which CVE IDs does GHSA-fv77-662p-ggvf cover?

GHSA-fv77-662p-ggvf covers the following CVE IDs: CVE-2026-86833. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-fv77-662p-ggvf?

GHSA-fv77-662p-ggvf has a CVSS v3 base score of 5.4, published by GitHub Security Advisories.

GHSA-fv77-662p-ggvfMediumCVSS 5.4

The MetForm WordPress plugin before 4.3.1 does not sanitize or escape submitted form-field values...

Vendor

GitHub Security Advisories

Published

October 7, 2026

Last Modified

October 7, 2026

🔗 CVE IDs covered (1)

CVE-2026-86833 →

📋 Description

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.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-86833
https://wpscan.com/vulnerability/6d6850d6-6fdf-4b97-9ccb-c90f9ed01ab0
https://github.com/advisories/GHSA-fv77-662p-ggvf