SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-9879

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.

EXPLOITCRITICAL 9.8EPSS 45.7%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 45.7%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

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.

CVSS 3.0
9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
45.69% probability · 99th percentile
Public exploits
1 in Exploit-DB · first 21 May 2019
CISA KEV
Not listed
Weakness
CWE-306
Affected
wpengine/wpgraphql
Source
cve@mitre.org
EPSS trend
0%25%50%21 September 2026: 19.36%22 September 2026: 46.61%3 November 2026: 45.69%21 September 20263 November 2026

EPSS moved from 19.4% on 21 September 2026 to 45.7% on 3 November 2026, peaking at 46.6% on 22 September 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-46886source ↗WordPress Plugin WPGraphQL 0.2.3 - Multiple Vulnerabilitiesphp · Simone Quatriniwebapps21 May 2019no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.