CVE-2026-48822— Shaarli Community shaarli 跨站脚本漏洞

Shaarli has Stored Cross-Site Scripting (XSS) via Markdown Reference Links

Shaarli is a personal bookmarking service. Versions 0.16.1 and prior contain a stored Cross-Site Scripting (XSS) vulnerability in the Markdown-to-HTML conversion process used in the Bookmark Description field. An authenticated user can inject a malicious javascript: URI inside a Markdown link. The vulnerability originates in the filterProtocols method within BookmarkMarkdownFormatter.php.This method attempts to sanitize Markdown links by filtering dangerous protocols (such as javascript:) before rendering. It uses the following regular expression: (#]\((.*?)\)#is). This regex is designed to detect inline Markdown links, but it fails to detect Markdown reference-style links because reference-style links are resolved by the Markdown parser after preprocessing. The filterProtocols method never inspects the actual URL used in these references and as a result, an attacker can supply a javascript: URI inside a reference definition. This issue has been fixed in version 0.16.2.

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

在Web页面生成时对输入的转义处理不恰当(跨站脚本)

Shaarli Community shaarli 跨站脚本漏洞

Shaarli Community Shaarli是Shaarli Community社区开源的一套网站克隆工具。 Shaarli Community shaarli 0.16.2之前版本存在跨站脚本漏洞，该漏洞源于BookmarkMarkdownFormatter.php中的filterProtocols方法在处理Markdown引用样式链接时未能正确过滤javascript: URI，可能导致存储型跨站脚本漏洞。

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