Threat intelligence

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

CVE-2026-65556 · goodbye-captcha

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Goodbye Captcha at a vulnerable version. How SiteRespond intelligence works

Vulnerability: WPBruiser {no- Captcha anti-Spam} <= 3.1.43 - Unauthenticated PHP Object Injection
Affected software: goodbye-captcha(Plugin)
Affected versions: ≤ 3.1.43
Authentication: Unauthenticated
Vulnerability type: Other
CVE: CVE-2026-65556
Published: 5 August 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.
Source: Data imported from Wordfence Intelligence (advisory 73a91a9e-5209-4da5-b6f4-f412fd7fb5c4). Methodology and redistribution notes

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