What is GHSA-mc9r-rc7r-x444?

GHSA-mc9r-rc7r-x444 is a security advisory published by GitHub Security Advisories with High severity. Unauthenticated PHP Object Injection in Booking Activities \u003c= 1.18.4 versions.

Which CVE IDs does GHSA-mc9r-rc7r-x444 cover?

GHSA-mc9r-rc7r-x444 covers the following CVE IDs: CVE-2026-28176. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-mc9r-rc7r-x444?

GHSA-mc9r-rc7r-x444 has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-mc9r-rc7r-x444HighCVSS 8.8

Unauthenticated PHP Object Injection in Booking Activities <= 1.18.4 versions.

Vendor

GitHub Security Advisories

Published

August 13, 2026

Last Modified

August 13, 2026

🔗 CVE IDs covered (1)

CVE-2026-28176 →

📋 Description

Unauthenticated PHP Object Injection in Booking Activities <= 1.18.4 versions.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-28176
https://patchstack.com/database/wordpress/plugin/booking-activities/vulnerability/wordpress-booking-activities-plugin-1-18-4-php-object-injection-vulnerability?_s_id=cve
https://github.com/advisories/GHSA-mc9r-rc7r-x444