CVE-2021-20873 — HIGH (8.1)

Q: How severe is CVE-2021-20873?

CVE-2021-20873 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-20873?

Check the references section above for vendor advisories and patch information. Affected products include: Yappli Yappli.

Vulnerability 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.

CVSS Score

8.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Yappli	Yappli	>= 7.3.6, < 9.30.0

Related Weaknesses (CWE)

CWE-862

References

https://jvn.jp/en/jp/JVN66422035/index.htmlThird Party Advisory
https://support.yappli.co.jp/hc/ja/articles/4410249902745Vendor Advisory
https://jvn.jp/en/jp/JVN66422035/index.htmlThird Party Advisory
https://support.yappli.co.jp/hc/ja/articles/4410249902745Vendor Advisory

FAQ

What is CVE-2021-20873?

CVE-2021-20873 is a vulnerability with a CVSS score of 8.1 (HIGH). 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...

How severe is CVE-2021-20873?

CVE-2021-20873 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-20873?

Check the references section above for vendor advisories and patch information. Affected products include: Yappli Yappli.