GHSA-4c87-gg2q-fc6m: Rc calendar jhorst Malicious Package Vulnerability

CRITICAL
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Advisory Summary

GHSA-4c87-gg2q-fc6m is a CRITICAL malicious package vulnerability (General Security Weakness) affecting Rc calendar jhorst libraries in the npm ecosystem. The issue involves malicious package in rc-calendar-jhorst. Remediation is available in the latest vendor maintenance releases.

GHSA-4c87-gg2q-fc6m at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-4c87-gg2q-fc6m
Severity CRITICAL
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Rc calendar jhorst
Package Ecosystem npm
Published Date
Last Updated

How to Fix GHSA-4c87-gg2q-fc6m

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

rc-calendar-jhorst fixed: Latest secure release 
npm install rc-calendar-jhorst@Latest secure release
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 rc-calendar-jhorst

How to Check if You Are Affected

To determine whether your Node.js application is affected by GHSA-4c87-gg2q-fc6m, inspect your project dependencies using npm:

npm ls rc-calendar-jhorst

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

Note: The npm ls rc-calendar-jhorst 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 General Security Weakness. In Rc calendar jhorst, 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

Version 8.4.3 of `rc-calendar-jhorst` contained malicious code. The code when executed in the browser would enumerate password, cvc, cardnumber fields from forms and send the extracted values to `https://js-metrics.com/minjs.php?pl=` ## Recommendation If version 8.4.3 of this module is found installed you will want to replace it with a version before or after 8.4.3. In addition to replacing the installed module, you will also want to evaluate your application to determine whether or not user data was compromised. Users may consider downgrading to version 8.4.2

GHSA-4c87-gg2q-fc6m Affected Rc calendar jhorst Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
rc-calendar-jhorst
npm/rc-calendar-jhorst
npm
8.4.3
All 1 versions
8.4.3
None specified

References

www.npmjs.com/advisories/633 WEB
https://www.npmjs.com/advisories/633

Frequently Asked Questions

What is GHSA-4c87-gg2q-fc6m?
GHSA-4c87-gg2q-fc6m is a security vulnerability in Rc calendar jhorst involving Malicious Package in rc-calendar-jhorst under General Security Weakness.
Which Rc calendar jhorst versions are affected?
Affected versions include releases prior to current release patches across affected packages: rc-calendar-jhorst.
What version fixes GHSA-4c87-gg2q-fc6m?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is rc-calendar-jhorst affected?
Yes, rc-calendar-jhorst is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What CWE is associated with GHSA-4c87-gg2q-fc6m?
GHSA-4c87-gg2q-fc6m is classified under General Security Weakness.
How can I check npm dependencies for GHSA-4c87-gg2q-fc6m?
Run the dependency tree command: 'npm ls rc-calendar-jhorst'. 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-4c87-gg2q-fc6m",
  "modified" : "2023-07-27T20:14:11Z",
  "published" : "2020-09-01T20:31:04Z",
  "aliases" : [ ],
  "summary" : "Malicious Package in rc-calendar-jhorst",
  "details" : "Version 8.4.3 of `rc-calendar-jhorst` contained malicious code. The code when executed in the browser would enumerate password, cvc, cardnumber fields from forms and send the extracted values to `https://js-metrics.com/minjs.php?pl=`\n\n\n\n## Recommendation\n\nIf version 8.4.3 of this module is found installed you will want to replace it with a version before or after 8.4.3. In addition to replacing the installed module, you will also want to evaluate your application to determine whether or not user data was compromised.\n\nUsers may consider downgrading to version 8.4.2",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "rc-calendar-jhorst"
    },
    "versions" : [ "8.4.3" ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/633"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-08-31T18:30:40Z",
    "nvd_published_at" : null
  }
}