PT-2021-14311 · Yappli · Yappli

Ryotak · Published 2021-12-28 · Updated 2022-01-12 · CVE-2021-20873

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Yappli versions 7.3.6 through 9.29.9

Description: The issue concerns improper authorization in the Custom URL Scheme handler. When exploited, it may direct users to unintended sites via a specially crafted URL.

Recommendations: For Yappli versions 7.3.6 through 9.29.9, update to version 9.30.0 or later to resolve the issue.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2021-20873

Affected Products

Yappli

References · 4

• https://support.yappli.co.jp/hc/ja/articles/4410249902745 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-20873 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-20873 · Security Note
• https://jvn.jp/en/jp/JVN66422035/index.html · Note