Critical Flaws in Popular VSCode Extensions Expose Devs
⚠️ Ox Security disclosed high- to critical-severity vulnerabilities in widely used VSCode extensions that could enable local file theft and remote code execution. Affected extensions include Live Server (CVE-2025-65717), Code Runner (CVE-2025-65715), Markdown Preview Enhanced (CVE-2025-65716), and a one-click XSS in Microsoft Live Preview (pre-0.4.16). The researchers say they attempted disclosure from June 2025 but received no responses from maintainers. Users are advised to avoid running localhost servers, opening untrusted HTML, pasting untrusted settings, and to remove unnecessary extensions.
