CVE-2026-44644— harttle liquidjs 跨站脚本漏洞

LiquidJS's strip_html filter bypass via newline characters in HTML tags enables XSS

LiquidJS is a Shopify/GitHub Pages compatible template engine written in pure JavaScript. Versions 10.25.7 and below are vulnerable to XSS through a flaw in the strip_html filter logic. The strip_html filter is intended to remove HTML tags from a string before rendering, and is widely used as an XSS sanitizer. The implementation uses a regex whose catch-all branch (<.*?>) does not match line terminators, so any HTML tag containing a \n or \r character passes through unmodified. An attacker who can place a newline inside a tag (e.g. <img\nsrc=x\nonerror=alert(1)>) bypasses sanitization entirely, since browsers treat newlines as whitespace within a tag and execute the resulting onerror/onload/etc. handler. Exploitation is possible for applications that both render attacker-controlled strings via {{ x | strip_html }} to defend against HTML injection and do not separately HTML-escape that output (default behavior — outputEscape is unset by default). This issue has been fixed in version 10.26.0.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/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)

harttle liquidjs 跨站脚本漏洞

harttle liquidjs是harttle的嵌入式Web服务器。 harttle liquidjs 10.25.7及之前版本存在跨站脚本漏洞，该漏洞源于strip_html过滤器逻辑缺陷，正则表达式未匹配换行符导致HTML标签绕过清理，可能造成跨站脚本攻击。

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