Plain Craft Launcher's custom homepage can use Internet Explorer to load web pages with the help of controls such as WebBrowser

published 2025-04-06 last yr. modified 2026-06-17 4mo ago also EUVD-2025-10017

cvss: 5.0; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits: 0; none known

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.

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CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: last yr. (2025-04-07)

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	4.0	4.9	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
CNA	4.0	5.0	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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

Hex-Dragon PCL2

Classification

Weakness

CWE-20 Improper Input Validation

References

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

Sources

CVE List CVE-2025-31488
NVD CVE-2025-31488

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