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I. Basic Information for CVE-2021-23253
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Opera Mini for Android below 53.1 displays URL left-aligned in the address field. This allows a malicious attacker to craft a URL with a long domain name, e.g. www.safe.opera.com.attacker.com. With the URL being left-aligned, the user will only see the front part (e.g. www.safe.opera.com…) The exact amount depends on the phone screen size but the attacker can craft a number of different domains and target different phones. Starting with version 53.1 Opera Mini displays long URLs with the top-level domain label aligned to the right of the address field which mitigates the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Opera Mini for Android 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Opera Mini是一款Web浏览器应用程序。 Opera Mini for Android below 53.1 存在安全漏洞,攻击者可利用该漏洞伪造一个带有长域名的URL,例如www.safe.opera.com.attacker.com,用户将只看到前面的部分(例如www.safe.opera.com)的确切数量取决于手机屏幕大小。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
-Opera Mini for Android Below 53.1 -
II. Public POCs for CVE-2021-23253
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III. Intelligence Information for CVE-2021-23253
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IV. Related Vulnerabilities
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