Risk | Low |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-20873 |
CWE-ID | CWE-939 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software Subscribe |
Yappli Mobile applications / Apps for mobile phones |
Vendor | Yappli |
Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU59175
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-20873
CWE-ID:
CWE-939 - Improper Authorization in Handler for Custom URL Scheme
Exploit availability: No
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsYappli: 7.3.6
External linkshttp://jvn.jp/en/jp/JVN66422035/index.html
http://support.yappli.co.jp/hc/ja/articles/4410249902745
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to perform certain actions on the device.
The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.