FILTER_VALIDATE_URL accepts URLs with invalid userinfo

In PHP versions 7.3.x below 7.3.26, 7.4.x below 7.4.14 and 8.0.0, when validating URL with functions like filter_var($url, FILTER_VALIDATE_URL), PHP will accept an URL with invalid password as valid URL. This may lead to functions that rely on URL being valid to mis-parse the URL and produce wrong data as components of the URL.

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

输入验证不恰当

PHP 输入验证错误漏洞

PHP（PHP：Hypertext Preprocessor，PHP：超文本预处理器）是PHP社区的共同维护的一种开源的通用计算机脚本语言。该语言主要用于Web开发，支持多种数据库及操作系统。 PHP 存在输入验证错误漏洞，该漏洞源于php_url_parse_ex函数导致FILTER_VALIDATE_URL接受带有无效userinfo的URL。

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