CVE-2026-37603
Received Received - Intake

Improper Authentication in pH7Builder CMS

Publication date: 2026-09-22

Last updated on: 2026-09-22

Assigner: MITRE

Description
Improper Restriction of Excessive Authentication Attempts in the administration login of pH7Software pH7Builder (pH7 Social Dating CMS) through 19.2.0. The CAPTCHA escalation flag is stored in the PHP session as captcha_admin_enabled and the CAPTCHA form element is only built when that flag is present, so a remote unauthenticated attacker who obtains a new session before each login attempt is never presented with the challenge.

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Meta Information

Published
2026-09-22
Last Modified
2026-09-22
Generated
2026-09-23
AI Q&A
2026-09-22
EPSS Evaluated
N/A
NVD
CVE-2026-37603
EUVD
EUVD-2026-84811

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
ph7software ph7builder 19.2.0

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is an improper restriction of excessive authentication attempts in the administration login of pH7Builder, a social dating CMS. The issue involves the CAPTCHA system being bypassed due to a session flag not being reset properly, allowing attackers to make unlimited login attempts without facing CAPTCHA challenges.

Detection Guidance

To detect this vulnerability, monitor for repeated failed admin login attempts without CAPTCHA challenges. Check server logs for sessions where the captcha_admin_enabled flag is missing despite multiple login attempts. Inspect HTTP headers for IP spoofing attempts in X-Forwarded-For or similar fields.

Impact Analysis

An attacker could exploit this to perform brute-force attacks on admin accounts, potentially gaining unauthorized access to the system. This could lead to data breaches, unauthorized modifications, or complete control over the CMS.

Compliance Impact

This vulnerability could lead to unauthorized access, compromising data confidentiality and integrity. This may violate GDPR (data protection) and HIPAA (health data security) requirements, potentially resulting in legal penalties and reputational damage.

Mitigation Strategies

Update pH7Builder to the latest version beyond 19.2.0 to address the improper CAPTCHA restriction. Implement rate limiting on login attempts to prevent session-based brute force attacks. Monitor server logs for repeated failed login attempts from the same IP addresses.

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