PrivateBin persistent HTML injection in attachment filename enables redirect and defacement

PrivateBin is an online pastebin where the server has zero knowledge of pasted data. Versions 1.7.7 through 2.0.1 allow persistent HTML injection via the unsanitized attachment filename (attachment_name) when attachments are enabled. An attacker can modify attachment_name before encryption so that, after decryption, arbitrary HTML is inserted unescaped into the page near the file size hint, enabling redirect (e.g., meta refresh) and site defacement and related phishing attacks. Script execution is normally blocked by the recommended Content Security Policy, limiting confidentiality impact. The issue was introduced in 1.7.7 and fixed in 2.0.2. Update to 2.0.2 or later. Workarounds include enforcing the recommended CSP, deploying PrivateBin on a separate domain, or disabling attachments.

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

在Web页面生成时对输入的转义处理不恰当(跨站脚本)

PrivateBin 安全漏洞

PrivateBin是PrivateBin项目的一个极简的开源在线粘贴箱。 PrivateBin 1.7.7版本至2.0.1版本存在安全漏洞，该漏洞源于未清理附件文件名，可能导致HTML注入攻击。

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