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 2026-09-19 11:31:49+00:00| seen| https://gist.github.com/alon710/bea1abe85bdbc7360f709e8ba11f8e2a...

CVE-2026-84992

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...

meadmin-addons-doc (>=1.0.0, <=1.3.14) potentially affected by CVE-2026-84992 via md-editor-v3 (6.3.1)

md-editor-v3 NPM version 6.3.1 is affected by a known vulnerability. The following packages have a transitive dependency on md-editor-v3 and may be impacted: - meadmin-addons-doc =1.0.0, =1.3.14 Source cves: CVE-2026-84992 Source advisory: OSV:GHSA-3RM2-H79C-8QW6...

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

Summary MdPreview interpolates a fenced-code language into HTML attributes without escaping it. A crafted info string therefore executes JavaScript even when the shipped XSSPlugin is enabled. Details useMarkdownIt packages/MdEditor/layouts/Content/composition/useMarkdownIt.ts:206 registers a...

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...

GHSA-3RM2-H79C-8QW6 md-editor-v3: XSS via fenced-code language rendering bypass

Summary MdPreview interpolates a fenced-code language into HTML attributes without escaping it. A crafted info string therefore executes JavaScript even when the shipped XSSPlugin is enabled. Details useMarkdownIt packages/MdEditor/layouts/Content/composition/useMarkdownIt.ts:206 registers a...

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...

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...

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...

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...

grafana: Grafana: Unauthorized annotation deletion by editor users

A flaw was found in Grafana. An authenticated editor user could exploit this vulnerability to delete any annotation, even those for which they lack read permissions. This unauthorized action compromises the integrity of data by allowing deletion of information beyond their intended access scope...

EUVD-2026-82729

The Booking Calendar plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 11.8.2 via the wpbcajaxoptionsave AJAX action. The vulnerability exists because the handleajaxsave function applies per-option safeguards only to names explicitly registered via...

Cross-site Scripting (XSS)

Grav is vulnerable to Cross-Site Scripting XSS. The vulnerability is due to improper detection of event handlers when unpaired quotes are used in unquoted HTML attribute values, which allows an authenticated editor to bypass validation, inject malicious event handlers such as onerror=, and execut...

CVE-2026-84992: Improper Neutralization of Input During Web Page Generation

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...

PT-2026-95554

Name of the Vulnerable Software and Affected Versions md-editor-v3 versions prior to 6.5.4 Description MdPreview fails to escape or consistently quote the fenced-code language value when inserting it into class and language HTML attributes within the useMarkdownIt highlight callback. Because the...

CVE-2026-54613

Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to 1.0.8.5, getThemeFolder in admin/controller/editor/revisions.php returns the attacker-controlled theme parameter without sanitization, and backupFolder concatenates it beneath DIRTHEME...

CVE-2026-54612 Vvveb: Authenticated editor path traversal to PHP file write/RCE via data-v-save-global

Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. From 1.0.0 until 1.0.8.5, saveGlobalElements in admin/controller/editor/global-trait.php concatenates the attacker-controlled file portion of data-v-save-global to the active theme directory...

CVE-2026-54613 Vvveb: Path Traversal in Revision Backup Reader/Deleter via Unsanitized theme Parameter

Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to 1.0.8.5, getThemeFolder in admin/controller/editor/revisions.php returns the attacker-controlled theme parameter without sanitization, and backupFolder concatenates it beneath DIRTHEME...

CVE-2026-76154

A stored cross-site scripting vulnerability in the Geomap panel's MapLibre base layer allows a user with the Editor role to execute arbitrary JavaScript in another user's session by hosting a malicious style configuration, enabling escalation to Org Admin...