Vulnerability · Published Jul 7, 2021 · Assigned by jpcert
CVE-2021-20777
Medium 4.3
In plain English
A medium-severity security flaw in GU App for Android from G.U. CO., LTD.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities).
Severity (CVSS NVD)4.3Medium
Exploit odds (30 days)0.9%top 41.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Improper authorization in handler for custom URL scheme vulnerability in GU App for Android versions from 4.8.0 to 5.0.2 allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| G.U. CO., LTD. | GU App for Android | versions from 4.8.0 to 5.0.2 |
References
- https://jvn.jp/en/jp/JVN25850723/index.html x_refsource_MISC