Auth bypass in Mi App Store

CVE-2020-14121

A business logic vulnerability exists in Mi App Store. The vulnerability is caused by incomplete permission checks of the products being bypassed, and an attacker can exploit the vulnerability to perform a local silent installation.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (8.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-14121: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

  • Mi App Store — versions 4.12.2
  • Mi App Store — versions Mi App Store version 4.12.2

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-14121?
CVE-2020-14121 is a medium-severity vulnerability in Mi App Store, classified under Incorrect Authorization. CVSS score: 5.5/10. Published 2022-04-21.
How severe is CVE-2020-14121?
Medium severity. CVSS v3 base score is 5.5 out of 10.