CVE-2019-13321

Severity: high (CVSS 8.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-02-10 · updated 2026-06-17
Weakness: CWE-732

Description

This vulnerability allows network adjacent attackers to execute arbitrary code on affected installations of Xiaomi Browser Prior to 10.4.0. User interaction is required to exploit this vulnerability in that the target must connect to a malicious access point. The specific flaw exists within the handling of HTTP responses to the Captive Portal. A crafted HTML response can cause the Captive Portal to to open a browser to a specified location without user interaction. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. Was ZDI-CAN-7467.

Affected products

Xiaomi Browser: before 10.4.0 — fixed in 10.4.0

How to fix

Upgrade to a fixed version: Xiaomi Browser 10.4.0. Check the vendor advisory for mitigations.

References

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