What’s Vulnerable › Vulnerabilities

CVE-2012-10032: Maxthon3 about:history XCS Trusted Zone Code Execution

• Severity: high (CVSS 8.7 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-08-05 · updated 2026-06-16
• Weakness: CWE-79

Description

Maxthon3 version 3.2.2 build 1000 and prior are vulnerable to cross context scripting (XCS) via the about:history page. The browser’s trusted zone improperly handles injected script content, allowing attackers to execute arbitrary JavaScript in a privileged context. This flaw enables modification of browser configuration and execution of arbitrary code through Maxthon’s exposed DOM APIs, including maxthon.program.Program.launch() and maxthon.io.writeDataURL(). Exploitation requires user interaction, typically by visiting a malicious webpage that triggers the injection.

Affected products

• Maxthon International Ltd. Maxthon3 Browser: from 3.1.7 build 600 through 3.2.2 build 1000

References

• http://blog.malerisch.net/2012/12/maxthon-cross-context-scripting-xcs-about-history-rce.html
• https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/browser/maxthon_history_xcs.rb
• https://www.exploit-db.com/exploits/23225
• https://www.fortiguard.com/encyclopedia/ips/34203
• https://www.maxthon.com/
• https://www.vulncheck.com/advisories/maxthon3-xcs-trusted-zone-code-exec
• https://www.exploit-db.com/exploits/23225

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