# CardGate Payments plugin for WooCommerce does not validate request origin

Advisory record · `GHSA-5pq5-9phv-q5j3`

- **Identifiers:** `GHSA-5pq5-9phv-q5j3` · `CVE-2020-8819` · `PKSA-txy6-xbmr-vmrx`
- **State:** Confirmed
- **Severity:** CVSS 8.1 High
- **Critical:** No
- **Weakness (CWE):** [CWE-346](https://cwe.mitre.org/data/definitions/346.html)
- **Tags:** [CWE-346](https://agentprime.io/advisories/tag/cwe-346.md)
- **Published:** 24 May 2022
- **Updated:** 8 Nov 2023
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 24 May 2022, 17:09 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `cardgate/woocommerce` (Packagist): affected `<3.1.16`; fixed in `3.1.16`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 8.1 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** 0.049, the 92nd percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 24 May 2022. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-5pq5-9phv-q5j3](https://github.com/advisories/GHSA-5pq5-9phv-q5j3)
- [OSV: GHSA-5pq5-9phv-q5j3](https://osv.dev/vulnerability/GHSA-5pq5-9phv-q5j3)
- <https://nvd.nist.gov/vuln/detail/CVE-2020-8819>
- <https://github.com/cardgate/woocommerce/issues/18>
- <https://github.com/cardgate/woocommerce/pull/17/commits/0b83588d604c8c56c7fded43144fcced96b2ada9>
- <https://github.com/cardgate/woocommerce>
- <https://github.com/cardgate/woocommerce/blob/f2111af7b1a3fd701c1c5916137f3ac09482feeb/cardgate/cardgate.php#L426-L442>
- <https://wpvulndb.com/vulnerabilities/10097>
- <https://www.exploit-db.com/exploits/48134>
- <http://packetstormsecurity.com/files/156504/WordPress-WooCommerce-CardGate-Payment-Gateway-3.1.15-Bypass.html>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-5pq5-9phv-q5j3>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-5pq5-9phv-q5j3/>. Everything for agents: <https://agentprime.io/llms.txt>.