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 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 Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-47959?
CVE-2021-47959 has a moderate severity rating due to its impact on server resources, leading to a denial of service.
How do I fix CVE-2021-47959?
To fix CVE-2021-47959, update the WPGraphQL plugin to version 1.3.6 or later.
Who is affected by CVE-2021-47959?
CVE-2021-47959 affects any WordPress site using the WPGraphQL plugin version 1.3.5.
What type of vulnerability is CVE-2021-47959?
CVE-2021-47959 is a denial of service vulnerability that allows resource exhaustion through specific GraphQL queries.
Can attackers exploit CVE-2021-47959 remotely?
Yes, attackers can exploit CVE-2021-47959 remotely by sending crafted POST requests to the GraphQL endpoint.