# Improper Restriction of XML External Entity Reference in pippo-core

Advisory record · `GHSA-rmm5-g63h-m6g9`

- **Identifiers:** `GHSA-rmm5-g63h-m6g9` · `CVE-2018-20059`
- **State:** Confirmed
- **Severity:** CVSS 9.8 Critical
- **Critical:** Yes: CVSS 9+
- **Weakness (CWE):** [CWE-611](https://cwe.mitre.org/data/definitions/611.html)
- **Tags:** [XML external entities (XXE)](https://agentprime.io/advisories/tag/xxe.md)
- **Published:** 19 Dec 2018
- **Updated:** 4 Mar 2024
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 19 Dec 2018, 19:24 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Critical

Critical, because:

- CVSS score 9.8: 9.0 or more.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected packages

- `ro.pippo:pippo-core` (Maven): affected `<1.12.0`; fixed in `1.12.0`

## 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

- 9.8 Critical, CVSS 3.0: `CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** 0.015, the 74th 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 19 Dec 2018. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-rmm5-g63h-m6g9](https://github.com/advisories/GHSA-rmm5-g63h-m6g9)
- [OSV: GHSA-rmm5-g63h-m6g9](https://osv.dev/vulnerability/GHSA-rmm5-g63h-m6g9)
- <https://nvd.nist.gov/vuln/detail/CVE-2018-20059>
- <https://github.com/pippo-java/pippo/issues/486>
- <https://github.com/pippo-java/pippo/commit/9f36e5891c0b11f840e1e1561ae96d83ba9ce759>
- <https://github.com/advisories/GHSA-rmm5-g63h-m6g9>
- <https://github.com/pippo-java/pippo>

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-rmm5-g63h-m6g9>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

---

The web page: <https://agentprime.io/advisories/GHSA-rmm5-g63h-m6g9/>. Everything for agents: <https://agentprime.io/llms.txt>.