CVE-2026-108905pH7Builder (pH7 Social Dating CMS) before 18.6.0 contains a hard-coded API key vulnerability in Tool.class.php that allows unauthenticated attackers to bypass API access checks by spoofing the Host header. Attackers can send Host: localhost with private_api_key=dev772277 and the default allowed URL to retrieve member emails, IP addresses, phone numbers, and bank account fields.