CVE-2026-67363 Joomla Extension - balbooa.com - Pre-auth Payment Amount Tampering in Balbooa Forms < 2.4.3.2

High 7.7 Published Updated

Unauthenticated attackers can tamper with payment amounts and line items in Balbooa Forms, purchasing items for arbitrary prices.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-67363?

CVE-2026-67363 is a high-severity vulnerability in balbooa.com Balbooa Forms extension for Joomla, published on 19 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Joomla Extension - balbooa.com - Pre-auth Payment Amount Tampering in Balbooa Forms < 2.4.3.2 - The stripeCharges and payAuthorize endpoints accept the charge total from a client-controlled request parameter and forward it to the payment gateway without recomputing it from the form's configured product prices. Neither endpoint enforces authentication or CSRF checks. An unauthenticated attacker can purchase any priced item for an arbitrary amount (e.g., $0.01), and can additionally forge line items, quantities, and shipping.

Weakness: CWE-602, CWE-472

Which versions are affected by CVE-2026-67363?

How do I fix CVE-2026-67363?

No fix has been published for CVE-2026-67363 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-67363 being exploited?

There is no known exploitation of CVE-2026-67363 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-5m7r-g86c-vqw2.

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