CVE-2026-65556: WordPress WPBruiser {no- Captcha anti-Spam} plugin <= 3.1.43 - PHP Object Injection vulnerability

Published Aug 6, 2026

Updated

Unauthenticated PHP Object Injection in WPBruiser {no- Captcha anti-Spam} <= 3.1.43 versions.

Affected Software

1 affected component

WordPress WPBruiser {no-Captcha anti-Spam} plugin<=3.1.43

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade WordPress WPBruiser {no- Captcha anti-Spam} plugin to a version that resolves this vulnerability.
Fixed in 3.1.43

Aug 6, 2026

CVE Published

via MITRE·02:27 PM

Data Sourced

via MITRE·02:27 PM

DescriptionSeverityWeakness

CVE-2026-65556 has a critical severity rating of 9.8.

CVE-2026-65556 is a PHP Object Injection vulnerability affecting the WPBruiser {no-Captcha anti-Spam} plugin.

CVE-2026-65556 allows unauthenticated users to exploit PHP Object Injection, potentially leading to remote code execution.

CVE-2026-65556 affects versions of the WPBruiser {no-Captcha anti-Spam} plugin up to and including 3.1.43.

To fix CVE-2026-65556, upgrade the WPBruiser {no-Captcha anti-Spam} plugin to the latest version that addresses this vulnerability.