CVE-2026-28176: WordPress Booking Activities plugin <= 1.18.4 - PHP Object Injection vulnerability
Published Aug 13, 2026
·Updated
Unauthenticated PHP Object Injection in Booking Activities <= 1.18.4 versions.
Affected Software
1 affected component
WordPress Booking Activities<=1.18.4
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
WordPress Booking Activities pluginto a version that resolves this vulnerability.Fixed in 1.18.5
Event History
Aug 13, 2026
CVE Published
via MITRE·01:36 PM
Data Sourced
via MITRE·01:36 PM
RemedyDescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2026-28176?
The severity of CVE-2026-28176 is rated as high with a score of 8.8.
2
How do I fix CVE-2026-28176?
To fix CVE-2026-28176, update the WordPress Booking Activities plugin to version 1.18.5 or later.
3
What type of vulnerability is CVE-2026-28176?
CVE-2026-28176 is classified as an unauthenticated PHP Object Injection vulnerability.
4
What versions of the WordPress Booking Activities plugin are affected by CVE-2026-28176?
Versions of the WordPress Booking Activities plugin up to and including 1.18.4 are affected by CVE-2026-28176.
5
What impact does CVE-2026-28176 have on my WordPress site?
CVE-2026-28176 can allow an attacker to perform unauthorized actions on your WordPress site due to the PHP Object Injection vulnerability.