CVE-2019-19709: Mediawiki/core Possible To Circumvent Title-blacklist Vulnerability

MODERATE
Advisory Identifier: GHSA-pjv5-vv93-p648
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CVSS 6.1
CWE-601
Published
Advisory Summary

CVE-2019-19709 is a MODERATE (CVSS 6.1) possible to circumvent title-blacklist vulnerability (CWE-601: URL Redirection to Untrusted Site ('Open Redirect')) affecting Mediawiki/core libraries in the Packagist ecosystem. The issue involves possible to circumvent title-blacklist. Remediation is available by upgrading affected packages to version 1.31.6, 1.32.6, 1.33.2, 1.34.0.

CVE-2019-19709 at a Glance

CVE Identifier CVE-2019-19709
GHSA Identifier GHSA-pjv5-vv93-p648
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
Affected Product Mediawiki/core
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 6.1

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

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
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-2019-19709

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

mediawiki/core fixed: 1.31.6 
Upgrade mediawiki/core to 1.31.6
mediawiki/core fixed: 1.32.6 
Upgrade mediawiki/core to 1.32.6
mediawiki/core fixed: 1.33.2 
Upgrade mediawiki/core to 1.33.2
mediawiki/core fixed: 1.34.0 
Upgrade mediawiki/core to 1.34.0
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 mediawiki/core

How to Check if You Are Affected

To determine whether your application is affected by CVE-2019-19709, inspect your project dependencies for Mediawiki/core:

inspect dependencies for mediawiki/core

Analyze the terminal output to locate any version of Mediawiki/core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.31.6), 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-601: URL Redirection to Untrusted Site ('Open Redirect'), where the web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect. In Mediawiki/core, 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

MediaWiki through 1.33.1 allows attackers to bypass the Title_blacklist protection mechanism by starting with an arbitrary title, establishing a non-resolvable redirect for the associated page, and using redirect=1 in the action API when editing that page.

CVE-2019-19709 Affected Mediawiki/core Versions

4 component(s)
Fixed Versions:
1.31.61.32.61.33.21.34.0
Product / Package Ecosystem Affected Versions Fixed Version
mediawiki/core
 Packagist
≥ 1.31.0
< 1.31.6
1.31.6
mediawiki/core
 Packagist
≥ 1.32.0
< 1.32.6
1.32.6
mediawiki/core
 Packagist
≥ 1.33.0
< 1.33.2
1.33.2
mediawiki/core
 Packagist
≥ 1.33.99
< 1.34.0
1.34.0

References

NVD — CVE-2019-19709 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-19709
gerrit.wikimedia.org/r/q/ie54f366986056c... WEB
https://gerrit.wikimedia.org/r/q/Ie54f366986056c876eade0fcad6c41f70b8b8de8
Mediawiki/core Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2019-19709.yaml
Mediawiki/core Source Repository REPOSITORY
https://github.com/wikimedia/mediawiki
phabricator.wikimedia.org/t239466 WEB
https://phabricator.wikimedia.org/T239466
seclists.org/bugtraq/2019/dec/48 WEB
https://seclists.org/bugtraq/2019/Dec/48
Mediawiki/core Security Information SECURITY
https://www.debian.org/security/2019/dsa-4592

Frequently Asked Questions

What is CVE-2019-19709?
CVE-2019-19709 is a security vulnerability in Mediawiki/core involving Possible to circumvent title-blacklist under CWE-601: URL Redirection to Untrusted Site ('Open Redirect').
Which Mediawiki/core versions are affected?
Affected versions include releases prior to 1.31.6, 1.32.6, 1.33.2, 1.34.0 across affected packages: mediawiki/core.
What version fixes CVE-2019-19709?
Upgrading to 1.31.6, 1.32.6, 1.33.2, 1.34.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is mediawiki/core affected?
Yes, mediawiki/core is affected in releases prior to 1.31.6, 1.32.6, 1.33.2, 1.34.0. Upgrade your dependency to 1.31.6, 1.32.6, 1.33.2, 1.34.0 or later.
What is the CVSS score of CVE-2019-19709?
CVE-2019-19709 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2019-19709?
CVE-2019-19709 is classified under CWE-601: URL Redirection to Untrusted Site ('Open Redirect') (The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.).
How can I check Packagist dependencies for CVE-2019-19709?
Run the dependency tree command: 'inspect dependencies for mediawiki/core'. 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-pjv5-vv93-p648",
  "modified" : "2024-05-15T22:50:39Z",
  "published" : "2022-05-24T17:03:17Z",
  "aliases" : [ "CVE-2019-19709" ],
  "summary" : "Possible to circumvent title-blacklist",
  "details" : "MediaWiki through 1.33.1 allows attackers to bypass the Title_blacklist protection mechanism by starting with an arbitrary title, establishing a non-resolvable redirect for the associated page, and using redirect=1 in the action API when editing that page.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "mediawiki/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.31.0"
      }, {
        "fixed" : "1.31.6"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "mediawiki/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.32.0"
      }, {
        "fixed" : "1.32.6"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "mediawiki/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.33.0"
      }, {
        "fixed" : "1.33.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "mediawiki/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.33.99"
      }, {
        "fixed" : "1.34.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-19709"
  }, {
    "type" : "WEB",
    "url" : "https://gerrit.wikimedia.org/r/q/Ie54f366986056c876eade0fcad6c41f70b8b8de8"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2019-19709.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/wikimedia/mediawiki"
  }, {
    "type" : "WEB",
    "url" : "https://phabricator.wikimedia.org/T239466"
  }, {
    "type" : "WEB",
    "url" : "https://seclists.org/bugtraq/2019/Dec/48"
  }, {
    "type" : "WEB",
    "url" : "https://www.debian.org/security/2019/dsa-4592"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-601" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-15T22:50:39Z",
    "nvd_published_at" : "2019-12-11T02:15:00Z"
  }
}