Improper Authorization in Handler for Custom URL Scheme in Yappli - CVE-2021-20873

 

Improper Authorization in Handler for Custom URL Scheme in Yappli - CVE-2021-20873

Published: January 4, 2022


Vulnerability identifier: #VU59175
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-20873
CWE-ID: CWE-939
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Yappli
Affected software:
Yappli

Detailed vulnerability description

The vulnerability allows a local attacker to compromise the target system.

The vulnerability exists due to the affected app is launched by Custom URL Scheme. A local attacker can trick a victim to access an arbitrary URL.


How to mitigate CVE-2021-20873

Install updates from vendor's website.

Sources