CVE-2026-4420— Stored XSS via Page Creating functionality in Bludit

Stored XSS via Page Creating functionality in Bludit

Bludit is vulnerable to Stored Cross-Site Scripting (XSS) in its page creating functionality. An authenticated attacker with page creation privileges (such as Author, Editor, or Administrator) can embed a malicious JavaScript payload in the tags field of a newly created article. This payload will be executed when a victim visits the URL of the uploaded resource. The uploaded resource itself is accessible without authentication. Critically, this vulnerability could be used to automatically create a new site administrator if the victim has enough privileges.  The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only versions 3.17.2 and 3.18.0 were tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.

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在Web页面生成时对输入的转义处理不恰当(跨站脚本)

Bludit 跨站脚本漏洞

Bludit是Bludit开源的一套开源的轻量级博客内容管理系统（CMS）。 Bludit 3.17.2版本和3.18.0版本存在跨站脚本漏洞，该漏洞源于页面创建功能存在存储型跨站脚本漏洞，可能导致经过身份验证的攻击者在新建文章的标签字段中嵌入恶意JavaScript有效载荷，当受害者访问上传资源的URL时执行。

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