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

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

- **Severity:** High 7.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Aug 2026
- **Updated:** 21 Aug 2026
- **Also known as:** GHSA-5m7r-g86c-vqw2

## 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 (Client-Side Enforcement of Server-Side Security), CWE-472 (External Control of Assumed-Immutable Web Parameter)

## 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:

- Balboa form Command Injection POC (github_poc): https://github.com/Lulztigre/cve-2026-67363-67364

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-67363 and fix it if it is affected.

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

Affected product: balbooa.com Balbooa Forms extension for Joomla. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-67363/ (Markdown: https://insights.sbomify.com/CVE-2026-67363/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-67363
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-67363
- OSV: https://osv.dev/vulnerability/CVE-2026-67363

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-67363/
Summaries are generated and may contain mistakes; the official description above is the record.