Ech0's RSS feed renders unescaped tag names and raw-HTML markdown, stored XSS against subscribers

Summary The public RSS/Atom feed at /rss renders two attacker-controlled surfaces without HTML escaping. Tag names flow through fmt.AppendfrenderedContent, "%s", tag.Name at internal/service/common/common.go:120, and the Markdown renderer at internal/util/md/md.go does not set the html.SkipHTML...

CVE-2026-33066

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the backend renderREADME function uses lute.New without calling SetSanitizetrue, allowing raw HTML embedded in Markdown to pass through unmodified. The frontend then assigns the rendered HTML to innerHTML without any...

SiYuan 跨站脚本漏洞

SiYuan is a privacy-oriented personal knowledge management system developed by SiYuan. Versions of SiYuan 3.6.0 and earlier had a cross-site scripting vulnerability. This vulnerability stemmed from the renderREADME function not properly cleaning HTML within Markdown tags, which could lead to...

CVE-2024-7983

Open-WebUI 0.3.8 exposes an unauthenticated markdown-to-HTML endpoint (likely /api/v1/utils/markdown). A crafted payload can cause high CPU/time consumption, rendering the server unresponsive (DoS). Remediation: upgrade to open-webui version 0.5.13 or newer.

CVE-2024-55601

A flaw was found in the Hugo static site generator. Some HTML attributes in Markdown in the internal templates do not escape in internal render hooks. Hugo users who do not trust their Markdown content files and are using one or more of these templates are impacted; default/markup/render-link.htm...