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CVE-2019-9879

75
FAUCET Score

CVE-2019-9879 describes a critical vulnerability in WPGraphQL plugin version 0.2.3 for WordPress, allowing remote attackers to register new users with administrative privileges if user registration is enabled. This flaw, tied to the registerUser mutation, carries a CVSS score of 9.8 (Critical) due to its network-based attack vector, low complexity, and high impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog or showing active exploitation, public exploit code exists via ExploitDB (EDB-46886) and Nuclei templates, though community discussion and media coverage remain minimal.

Impacted Technologies

VendorProductVersion(s)CPE
0.2.3CPE matchmatch criteria
cpe:2.3:a:wpengine:wpgraphql:0.2.3:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
46.61%
Probability of exploitation in next 30 days
EPSS Percentile
98.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Nuclei: CVE-2019-9879 · Jun 11, 2025
ExploitDB: EDB-46886 · May 21, 2019
This CVE's current EPSS score of 0.4661 is in the 96th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/153025/WordPress-WPGraphQL-0.2.3-Authentication-Bypass-Information-Disclosure.html
ExploitThird Party AdvisoryVDB Entry
github.com / pentestpartners/snippets/blob/master/wp-graphql0.2.3_exploit.py
ExploitThird Party Advisory
github.com / wp-graphql/wp-graphql/releases/tag/v0.3.0
Release NotesThird Party Advisory
wpvulndb.com / vulnerabilities/9282
Vendor Advisory
pentestpartners.com / security-blog/pwning-wordpress-graphql
ExploitThird Party Advisory