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OpenAdvisories
High · 7.5 CVE-2021-47959 EUVD-2021-34814GHSA-3mgf-xgf9-2wg2

WordPress Plugin WPGraphQL 1.3.5 Denial of Service

Published May 15, 2026 · Updated May 15, 2026 · Assigned by VulnCheck

Description

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.

Affected products

VendorProductAffectedFixed
Wpgraphql WPGraphQL 1.3.5 —

References