GHSA-vccx-p757-pv6h
Suggest an improvement- Source
- https://github.com/advisories/GHSA-vccx-p757-pv6h
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-vccx-p757-pv6h/GHSA-vccx-p757-pv6h.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-vccx-p757-pv6h
- Aliases
- Published
- 2026-03-18T20:17:12Z
- Modified
- 2026-03-23T18:56:25Z
- Severity
-
- 2.3 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- mo has a XSS via inline SVG script tags in Markdown rendering
- Details
-
Summary
When rendering Markdown files containing inline SVG elements with
<script>tags, the embedded JavaScript is executed in the browser. This is due torehype-rawpassing raw HTML (including SVG) through to the DOM without sanitization.PoC
<svg><script>alert(1)</script></svg>Embedding the above in a Markdown file opened with mo causes the script to execute.
Impact
Arbitrary JavaScript execution in the context of the mo application when a user opens a malicious Markdown file. This could lead to data exfiltration of other opened Markdown file contents.
Remediation
Fixed by adding
rehype-sanitizeto the Markdown rendering pipeline, which strips dangerous elements such as<script>while preserving safe HTML. - Database specific
{ "cwe_ids": [ "CWE-79" ], "github_reviewed": true, "github_reviewed_at": "2026-03-18T20:17:12Z", "nvd_published_at": null, "severity": "LOW" }- References
Affected packages
Go / github.com/k1LoW/mo
Package
- Name
- github.com/k1LoW/mo
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/k1LoW/mo