What is CVE-2021-47959?

CVE-2021-47959 is a high-severity vulnerability in Wpgraphql, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-05-15.

How severe is CVE-2021-47959?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Wpgraphql

CVE-2021-47959

WordPress Plugin WPGraphQL 1.3.5 contains a denial of service vulnerability that allows unauthenticated attackers to exhaust server resources by sending batched GraphQL queries with duplicated fields. Attackers can send POST requests to th…

EPSS: 0.001 (16.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Wpgraphql — versions 1.3.5

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2021-47959?: CVE-2021-47959 is a high-severity vulnerability in Wpgraphql, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-05-15.
How severe is CVE-2021-47959?: High severity. CVSS v3 base score is 7.5 out of 10.