# CVE-2026-80340: Payment Plugins for PayPal WooCommerce < 2.0.26 - Unauthenticated Customer PII Disclosure via order-pay

> Unauthenticated attackers can retrieve customer billing and shipping details by iterating order IDs due to missing validation of order keys in the PayPal WooCommerce plugin.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Sep 2026
- **Updated:** 9 Sep 2026
- **Also known as:** GHSA-43fh-8hgg-2q9m

## What is CVE-2026-80340?

CVE-2026-80340 is a medium-severity vulnerability in Unknown Payment Plugins for PayPal WooCommerce, published on 9 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Payment Plugins for PayPal WooCommerce WordPress plugin before 2.0.26 does not validate the order key before adding order data to the JavaScript configuration it outputs on the front end, allowing unauthenticated users to obtain the secret that gates access to any order and, through it, that customer's billing and shipping details, by iterating sequential order identifiers.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2026-80340?


## How do I fix CVE-2026-80340?

No fix has been published for CVE-2026-80340 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-80340 being exploited?

There is no known exploitation of CVE-2026-80340 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-80340 and fix it if it is affected.

What it is: CVE-2026-80340 is a medium-severity vulnerability in Unknown Payment Plugins for PayPal WooCommerce, published on 9 Sep 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-2026-80340 in the wild and no public exploit code.

Affected product: Unknown Payment Plugins for PayPal WooCommerce. 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-2026-80340/ (Markdown: https://insights.sbomify.com/CVE-2026-80340/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-80340
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-80340
- OSV: https://osv.dev/vulnerability/CVE-2026-80340

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-80340/
Summaries are generated and may contain mistakes; the official description above is the record.