CVE-2025-9910: Jsondiffpatch :nodeBegin Vulnerability

MODERATE
Advisory Identifier: GHSA-33vc-wfww-vjfv
Share
CVSS 4.7
CWE-79
Published
Advisory Summary

CVE-2025-9910 is a MODERATE (CVSS 4.7) :nodebegin vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Jsondiffpatch libraries in the npm ecosystem. The issue involves :nodebegin. Remediation is available by upgrading affected packages to version 0.7.2.

CVE-2025-9910 at a Glance

CVE Identifier CVE-2025-9910
GHSA Identifier GHSA-33vc-wfww-vjfv
Severity MODERATE
CVSS v3.1 Base Score 4.7
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Jsondiffpatch
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 4.7

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2025-9910

To remediate this vulnerability, upgrade all affected Jsondiffpatch dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

jsondiffpatch fixed: 0.7.2 
npm install jsondiffpatch@0.7.2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls jsondiffpatch

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2025-9910, inspect your project dependencies using npm:

npm ls jsondiffpatch

Analyze the terminal output to locate any version of Jsondiffpatch in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.7.2), your application is affected.

Note: The npm ls jsondiffpatch command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Jsondiffpatch, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### 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.

CVE-2025-9910 Affected Jsondiffpatch Versions

1 component(s)
Fixed Versions:
0.7.2
Product / Package Ecosystem Affected Versions Fixed Version
jsondiffpatch
npm/jsondiffpatch
npm
< 0.7.2
0.7.2

References

NVD — CVE-2025-9910 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-9910
Jsondiffpatch Source Repository REPOSITORY
https://github.com/benjamine/jsondiffpatch/issues/383
Security Fix Commit FIX COMMIT
https://github.com/benjamine/jsondiffpatch/commit/0e374b5dd8d7879b329a9fc18affbd46ad50dd14
benjamine.github.io/jsondiffpatch/index... WEB
https://benjamine.github.io/jsondiffpatch/index.html
Jsondiffpatch Source Repository REPOSITORY
https://github.com/benjamine/jsondiffpatch
Jsondiffpatch Security Information SECURITY
https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-12549277
Jsondiffpatch Security Information SECURITY
https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-12549276
Jsondiffpatch Security Information SECURITY
https://security.snyk.io/vuln/SNYK-JS-JSONDIFFPATCH-10369031

Frequently Asked Questions

What is CVE-2025-9910?
CVE-2025-9910 is a security vulnerability in Jsondiffpatch involving :nodeBegin under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Jsondiffpatch versions are affected?
Affected versions include releases prior to 0.7.2 across affected packages: jsondiffpatch.
What version fixes CVE-2025-9910?
Upgrading to 0.7.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is jsondiffpatch affected?
Yes, jsondiffpatch is affected in releases prior to 0.7.2. Upgrade your dependency to 0.7.2 or later.
What is the CVSS score of CVE-2025-9910?
CVE-2025-9910 has a CVSS v3.1 base score of 4.7 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2025-9910?
CVE-2025-9910 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check npm dependencies for CVE-2025-9910?
Run the dependency tree command: 'npm ls jsondiffpatch'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-33vc-wfww-vjfv",
  "modified" : "2025-09-22T22:45:32Z",
  "published" : "2025-09-11T06:30:23Z",
  "aliases" : [ "CVE-2025-9910" ],
  "summary" : "jsondiffpatch is vulnerable to Cross-site Scripting (XSS) via HtmlFormatter::nodeBegin",
  "details" : "### Vulnerability in jsondiffpatch\n\nVersions 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.\n\n**Affected versions:** >= 0, < 0.7.2\n**Patched version:** 0.7.2\n\n**Remediation**\nUpgrade to `jsondiffpatch` `0.7.2` or later. The fix hardens the HTML formatter to avoid script injection.\n\n**Workarounds**\nAvoid using the HTML formatter on untrusted diffs, or sanitize/escape the rendered output.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "jsondiffpatch"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.7.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-9910"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/benjamine/jsondiffpatch/issues/383"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/benjamine/jsondiffpatch/commit/0e374b5dd8d7879b329a9fc18affbd46ad50dd14"
  }, {
    "type" : "WEB",
    "url" : "https://benjamine.github.io/jsondiffpatch/index.html"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/benjamine/jsondiffpatch"
  }, {
    "type" : "WEB",
    "url" : "https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-12549277"
  }, {
    "type" : "WEB",
    "url" : "https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-12549276"
  }, {
    "type" : "WEB",
    "url" : "https://security.snyk.io/vuln/SNYK-JS-JSONDIFFPATCH-10369031"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-09-12T21:12:49Z",
    "nvd_published_at" : "2025-09-11T05:15:34Z"
  }
}