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CVE-2019-9879Wpgraphql Missing Authentication

The WPGraphQL 0.2.3 plugin for WordPress allows remote attackers to register a new user with admin privileges, whenever new user registrations are allowed.

Published Jun 10, 2019 · Updated Aug 7, 2026 · Also known as 80e74852-517e-4cd0-a7d3-6f6fe3433bff, WORDFENCE-80e74852-517e-4cd0-a7d3-6f6fe3433bff

Key Facts

Patch immediately
  • CVE-2019-9879 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Wpgraphql (Wpengine), wp-graphql (wordpress-plugin).
  • It is exploited in the wild, listed in Industry KEV feed since Apr 12, 2021. Public exploit code is available.
  • EPSS estimates a 47% probability of exploitation in the next 30 days.
  • Fixed versions are available, including wp-graphql 0.3.0.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Scores

CVSS v3.1

9.8

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

47%

Higher than 98.8% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

56/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Apr 12, 2021

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Proof of concept

Public exploit code

3

Proof-of-concept links

In-the-wild evidence

2

Reports of active use

Description

The WPGraphQL 0.2.3 plugin for WordPress allows remote attackers to register a new user with admin privileges, whenever new user registrations are allowed. This is related to the registerUser mutation.

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
Industry KEV feedApr 12, 2021n/aNot reported

Affected Products

2 affected entries in total
ProductAffected versionsFixed in
WpgraphqlWpengine0.2.3n/a
wp-graphqlwordpress-pluginSee advisory0.3.0

Patched Releases

wp-graphql

0.3.0

Timeline

  1. Publicly disclosed

    Jun 10, 2019

  2. Added to Industry KEV feed

    Apr 12, 2021

  3. Last updated

    Aug 7, 2026

Weakness Type

  • CWE-269 Improper Privilege Management
  • CWE-306 Missing Authentication for Critical Function

FAQ

Common Questions.

Is CVE-2019-9879 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.

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Figures as of Oct 19, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

To report an error, contact Brandefense.