Vulnerability · Published Oct 8, 2026 · Assigned by VulnCheck

CVE-2026-107636pH7Builder before 18.5.1 Payment Bypass via Payment Module MainController

Medium 6.5

In plain English

A medium-severity security flaw in ph7builder from ph7software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.3%top 75.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

pH7Builder (pH7 Social Dating CMS) before 18.5.1 contains a payment validation vulnerability that allows registered low-privileged members to obtain any membership tier by supplying client-controlled plan and amount fields. Attackers can set item_number, cart_order_id, or the PayPal custom field while paying a token amount, or submit uncompleted PayPal IPN payments, to gain the most expensive membership and its paid features.

Affected products (as reported)

Vendor	Product	Versions
ph7software	ph7builder	0 – before 18.5.1

Weakness: CWE-472 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

References

Patch Commit patch
https://github.com/pH7Software/pH7-Social-Dating-CMS/blob/v18.5.0/_protected/app/system/modules/payment/controllers/MainController.php#L274-L380 technical-description
https://github.com/pH7Software/pH7-Social-Dating-CMS product
VulnCheck Advisory: pH7Builder before 18.5.1 Payment Bypass via Payment Module MainController third-party-advisory