CVE-2018-19133: Flarum/framework Flarum Core Leaks PII Vulnerability

MODERATE
Advisory Identifier: GHSA-p6m5-x83r-hqmr
CVSS 5.3
CWE-200
Published
Advisory Summary

CVE-2018-19133 is a MODERATE (CVSS 5.3) flarum core leaks pii vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Flarum/framework libraries in the Packagist ecosystem. The issue involves flarum core leaks pii. Remediation is available in the latest vendor maintenance releases.

CVE-2018-19133 at a Glance

CVE Identifier CVE-2018-19133
GHSA Identifier GHSA-p6m5-x83r-hqmr
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Flarum/framework
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

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

How to Fix CVE-2018-19133

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

flarum/framework fixed: Latest secure release
Upgrade flarum/framework to 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:

inspect dependencies for flarum/framework

How to Check if You Are Affected

To determine whether your application is affected by CVE-2018-19133, inspect your project dependencies for Flarum/framework:

inspect dependencies for flarum/framework

Analyze the terminal output to locate any version of Flarum/framework 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: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In Flarum/framework, 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

In Flarum Core 0.1.0-beta.7.1, a serious leak can get everyone's email address.

CVE-2018-19133 Affected Flarum/framework Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
flarum/framework
Packagist
≤ 0.1.0-beta.7.1

References

Frequently Asked Questions

What is CVE-2018-19133?
CVE-2018-19133 is a security vulnerability in Flarum/framework involving Flarum Core Leaks PII under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Flarum/framework versions are affected?
Affected versions include releases prior to current release patches across affected packages: flarum/framework.
What version fixes CVE-2018-19133?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is flarum/framework affected?
Yes, flarum/framework is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2018-19133?
CVE-2018-19133 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2018-19133?
CVE-2018-19133 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check Packagist dependencies for CVE-2018-19133?
Run the dependency tree command: 'inspect dependencies for flarum/framework'. 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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-p6m5-x83r-hqmr",
  "modified" : "2023-07-24T21:00:08Z",
  "published" : "2022-05-14T01:44:13Z",
  "aliases" : [ "CVE-2018-19133" ],
  "summary" : "Flarum Core Leaks PII",
  "details" : "In Flarum Core 0.1.0-beta.7.1, a serious leak can get everyone's email address.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "flarum/framework"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.1.0-beta.7.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-19133"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/flarum/core/issues/1628"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/flarum/framework/commit/e99f7fcdace74211bec5627e6adf20ddf7dad2a7"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-24T21:00:08Z",
    "nvd_published_at" : "2018-11-09T11:29:00Z"
  }
}