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High severity8.1NVD Advisory· Published Dec 28, 2021· Updated Jun 17, 2026

CVE-2021-20873

CVE-2021-20873

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Yappli/Yapplillm-fuzzy2 versions
    v7.3.6 to <v9.30.0+ 1 more
    • (no CPE)range: v7.3.6 to <v9.30.0
    • cpe:2.3:a:yappli:yappli:*:*:*:*:*:*:*:*range: >=7.3.6,<9.30.0
  • Yappli, Inc./Yappliv5
    Range: versions since v7.3.6 and prior to v9.30.0

Patches

Vulnerability mechanics

References

2

News mentions

0

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