GHSA-33vc-wfww-vjfv

4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

jsondiffpatch is vulnerable to Cross-site Scripting (XSS) via HtmlFormatter::nodeBegin

Details

Vulnerability in jsondiffpatch

Versions of jsondiffpatch prior to 0.7.2 are vulnerable to Cross-site Scripting (XSS) in the HtmlFormatter (HtmlFormatter::nodeBegin). When diffs are rendered to HTML using the built-in formatter, untrusted payloads can inject scripts and execute in the context of a consuming web page.

Affected versions: >= 0, < 0.7.2 Patched version: 0.7.2

Remediation Upgrade to jsondiffpatch 0.7.2 or later. The fix hardens the HTML formatter to avoid script injection.

Workarounds Avoid using the HTML formatter on untrusted diffs, or sanitize/escape the rendered output.

Database specific

{
    "github_reviewed": true,
    "github_reviewed_at": "2025-09-12T21:12:49Z",
    "cwe_ids": [
        "CWE-79"
    ],
    "nvd_published_at": "2025-09-11T05:15:34Z",
    "severity": "MODERATE"
}

References

Affected packages

npm / jsondiffpatch

Package

Name: jsondiffpatch; View open source insights on deps.dev
Purl: pkg:npm/jsondiffpatch

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.7.2