# CVE-2026-123668: GetPaid 2.8.63 - 2.8.64 - Unauthenticated Payment Bypass via Fractional Item Quantity

> Unauthenticated users can mark priced items as paid without paying by submitting fractional item quantities; WordPress sites using GetPaid should care.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Harmful if only installed:** No
- **Needs a specific call:** No
- **Fix available:** No
- **Published:** 11 Nov 2026
- **Updated:** 11 Nov 2026
- **Also known as:** GHSA-gph4-x2p9-rpr7

## What is CVE-2026-123668?

CVE-2026-123668 is a medium-severity business logic flaw vulnerability in Unknown GetPaid, published on 11 Nov 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The GetPaid WordPress plugin from 2.8.63 to 2.8.64 does not ensure item quantities on its payment forms are whole numbers, allowing unauthenticated users to have an invoice for a priced item marked as paid without being charged.

Weakness: CWE-1284 (Improper Validation of Specified Quantity in Input)

## Which versions are affected by CVE-2026-123668?

An affected version is exposed as installed. No special setting or call is needed.


## How do I fix CVE-2026-123668?

No fix has been published for CVE-2026-123668 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-123668 being exploited?

There is no known exploitation of CVE-2026-123668 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-123668 and fix it if it is affected.

What it is: CVE-2026-123668 is a medium-severity business logic flaw vulnerability in Unknown GetPaid, published on 11 Nov 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-2026-123668 in the wild and no public exploit code.
Exposure: An affected version is exposed as installed. No special setting or call is needed.

Affected product: Unknown GetPaid. 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-2026-123668/ (Markdown: https://insights.sbomify.com/CVE-2026-123668/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-123668
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-123668
- OSV: https://osv.dev/vulnerability/CVE-2026-123668

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-123668/
Summaries are generated and may contain mistakes; the official description above is the record.