CVE-2017-2361

MEDIUM

macOS < 10.12.3 - Cross-Site Scripting in Help Viewer

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-2361. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit leverages a path traversal vulnerability in macOS HelpViewer to bypass file path validation and execute arbitrary JavaScript, leading to arbitrary file execution and read access. The PoC demonstrates opening Calculator.app via the 'x-help-script' protocol handler.

Description

An issue was discovered in certain Apple products. macOS before 10.12.3 is affected. The issue involves the "Help Viewer" component, which allows XSS attacks via a crafted web site.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · htmlremotemacos
https://www.exploit-db.com/exploits/41443

This exploit leverages a path traversal vulnerability in macOS HelpViewer to bypass file path validation and execute arbitrary JavaScript, leading to arbitrary file execution and read access. The PoC demonstrates opening Calculator.app via the 'x-help-script' protocol handler.

Classification
Working Poc 100%
Attack Type
Xss
Complexity
Moderate
Reliability
Reliable
Target: macOS HelpViewer (macOS Sierra 10.12.1)
No auth needed
Prerequisites: Victim must open a malicious link or file · macOS Sierra 10.12.1 or vulnerable version
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (5)

Core 5
Core References
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT207483
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/41443/
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1037671
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/95723

Scores

CVSS v3 6.1
EPSS 0.1713
EPSS Percentile 96.7%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
apple/mac_os_x < 10.12.2
Published Feb 20, 2017
Tracked Since Feb 18, 2026