CVE-2021-47959 — WordPress Plugin WPGraphQL 1.3.5 Denial of Service
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 …
Published: 2026-05-15 · CVSS: 8.7 · CVSS 4.0
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 the GraphQL endpoint with amplified field duplication payloads to trigger server out-of-memory conditions and MySQL connection errors.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7