CVE-2026-84992

creationtimestamp| type| source ---|---|--- 2026-09-18 18:35:10+00:00| published-proof-of-concept| https://github.com/imzbf/md-editor-v3/security/advisories/GHSA-3rm2-h79c-8qw6...

NPM: md-editor-v3: XSS via fenced-code language rendering bypass

NPM: md-editor-v3: XSS via fenced-code language rendering bypass vulnerability discovered by ? in WordPress Npm md-editor-v3 versions = 6.5.3...

CVE-2026-84992 md-editor-v3: XSS via fenced-code language rendering bypass

md-editor-v3 is a Markdown editor for Vue 3 developed in JSX and TypeScript. Prior to 6.5.4, MdPreview's useMarkdownIt highlight callback in packages/MdEditor/layouts/Content/composition/useMarkdownIt.ts inserts a fenced-code language value into class and language HTML attributes without escaping...

EUVD-2026-83198

md-editor-v3 is a Markdown editor for Vue 3 developed in JSX and TypeScript. Prior to 6.5.4, MdPreview's useMarkdownIt highlight callback in packages/MdEditor/layouts/Content/composition/useMarkdownIt.ts inserts a fenced-code language value into class and language HTML attributes without escaping...

CVE-2026-84992

md-editor-v3 , a Markdown editor for Vue 3, contains an XSS vulnerability in MdPreview's useMarkdownIt() highlight callback (useMarkdownIt.ts:206). The fenced-code language value is interpolated into class="language-${language}" and an unquoted language=${language} HTML attribute without escaping...