漏洞信息
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Vulnerability Title
Post Grid Gutenberg Blocks for News, Magazines, Blog Websites <= 5.0.31 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'moreResultsText' Block Attribute
Vulnerability Description
The Ultimate Post plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'moreResultsText' block attribute of the ultimate-post/advanced-search block in versions up to and including 5.0.31. This is due to insufficient input sanitization and output escaping in the Advanced_Search::content() render callback: the attribute value is filtered with wp_kses(), which strips disallowed HTML tags but does NOT escape HTML special characters such as double quotes in plain text, and the result is then concatenated directly into the data-viewmoretext HTML attribute without esc_attr(). This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Vulnerability Title
WordPress Ultimate Post 跨站脚本漏洞
Vulnerability Description
WordPress Ultimate Post是WordPress基金会的一款CMS组件。 WordPress Ultimate Post 5.0.31及之前版本存在跨站脚本漏洞,该漏洞源于Advanced_Search::content()渲染回调函数中对moreResultsText块属性输入清理和输出转义不足,经由wp_kses()过滤后未转义HTML特殊字符,导致直接拼接至data-viewmoretext属性,容易受到存储型跨站脚本攻击,使得认证攻击者(贡献者级别及以上)在页面中注入Web脚本并
CVSS Information
N/A
Vulnerability Type
N/A