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CVE-2026-47099 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:6.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CNA: [email protected]CVSS-B:6.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/Niccolo10/Security-Advisories/blob/main/CVE-2026-47099/cve-2026-47099.md	[email protected]
https://github.com/storybookjs/telejson/security/advisories/GHSA-ccgf-5rwj-j3hv	[email protected]	AdvisoryRemedyVendor
https://www.vulncheck.com/advisories/telejson-dom-based-xss-via-parse-function	[email protected]	Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]

Affected Products

Product	Versions
TeleJSON	< 6.0.0 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation Upgrade: >= 6.0.0moderate effort

Change History

6 change records found show changes

Date	Action	Recorded By
Jul 23, 2026	CVE Translated	[email protected]
Jul 14, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
May 21, 2026	CVE Modified	[email protected]
May 20, 2026	New CVE Received	[email protected]