AUGUST 4, 2026
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Case File

CVE-2021-20873

HIGH · CVSS 8.1 EPSS 0.84%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-12-28 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.1. It affects Android.

CVE
CVE-2021-20873
Severity
HIGH
CVSS
8.1
EPSS
0.84%
Android

Original NVD Description

Yappli is an application development platform which provides the function to access a requested URL using Custom URL Scheme. When Android apps are developed with Yappli versions since v7.3.6 and prior to v9.30.0, they are vulnerable to improper authorization in Custom URL Scheme handler, and may be directed to unintended sites via a specially crafted URL.