CVE-2026-27836
7.5 · HIGHOverview
CVE-2026-27836 is a high-severity vulnerability affecting phpmyfaq phpmyfaq. It was published on February 27, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
phpMyFAQ is an open source FAQ web application. Prior to version 4.0.18, the WebAuthn prepare endpoint (`/api/webauthn/prepare`) creates new active user accounts without any authentication, CSRF protection, captcha, or configuration checks. This allows unauthenticated attackers to create unlimited user accounts even when registration is disabled. Version 4.0.18 fixes the issue.
Remediation
Check the references section for vendor advisories and patches from phpmyfaq. Update phpmyfaq to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| phpmyfaq | phpmyfaq | >= 0, < 4.0.18 | Affected |
Frequently Asked Questions
What is CVE-2026-27836?
CVE-2026-27836 is a high-severity vulnerability affecting phpmyfaq phpmyfaq. It was published on February 27, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2026-27836?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-27836?
Check the references section for vendor advisories and patches from phpmyfaq. Update phpmyfaq to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-27836?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-27836 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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