CVE-2026-108903

pH7Builder (pH7 Social Dating CMS) before 19.3.0 contains a CAPTCHA bypass vulnerability that allows unauthenticated attackers to skip form validation by supplying a client-chosen form ID to PFBC Form::isValid(). Attackers can load a CAPTCHA-free form like login or search, then submit its ID with contact, comment, forum, invite or signup data to automate abuse.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/pH7Software/pH7-Social-Dating-CMS
https://github.com/pH7Software/pH7-Social-Dating-CMS/blob/v19.2.0/_protected/app/system/modules/contact/forms/ContactForm.php#L33-L38
https://github.com/pH7Software/pH7-Social-Dating-CMS/commit/4758d7d2ebfd5772faa25ef728c14f8f452e82f4
https://www.vulncheck.com/advisories/ph7builder-before-19.3.0-captcha-bypass-via-client-chosen-form-id

Configurations

No configuration.

History

11 Oct 2026, 15:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-11 15:16

Updated : 2026-10-13 14:17

NVD link : CVE-2026-108903

Mitre link : CVE-2026-108903

CVE.ORG link : CVE-2026-108903

JSON object : View

Products Affected

No product.

CWE

CWE-807

Reliance on Untrusted Inputs in a Security Decision

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