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CVE-2026-47099

CVE-2026-47099 · TeleJSON < 6.0.0 DOM-based XSS via parse() Function

This page contains facts from public vulnerability sources. Check the original advisory before updating.

TeleJSON prior to 6.0.0 contains a DOM-based cross-site scripting vulnerability in the parse() function that allows attackers to execute arbitrary JavaScript by delivering a crafted JSON payload containing a malicious _constructor-name_ property value. The custom reviver passes the constructor name directly to new Function() without sanitization when recreating object prototypes, enabling attackers to inject arbitrary JavaScript through vectors such as postMessage in cross-frame communication contexts to achieve script execution within the application.

CVSS 2.1 · Low · EPSS 0.4% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • telejson

    Versions
    • ≥ 0, < 6.0.0: Affected (semver)

    Update to 6.0.0

  • telejson npm

    Affected ranges
    • SEMVER: < 6.0.0

    Update to 6.0.0

Original sources

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