CVE-2021-47959
📛 CVE Title
(no title)
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.
Overview
- State
- —
- Assigner (CNA)
- —
- CVSS severity
- high
- CVSS score
- 7.5 / 10
- CVSS vector
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Effective score
- 7.5 / 10 HIGH source: CNA overview
- CWE(s)
- —
- Reserved
- —
- Published
- —
- Last updated
- —
- Source
- https://www.tenable.com/cve/CVE-2021-47959
- Linked Threat
- CVE-2021-47959 — CVE-2021-47959
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-05-15 19:16:55 UTC
- NVD last modified
- 2026-05-18 17:05:46 UTC
- NVD CVSS v3.1
- 7.5 / 10 HIGH source: disclosure@vulncheck.com
- NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Exploitability subscore
- 3.9 / 10
- Impact subscore
- 3.6 / 10
- EPSS score
- 0.0005 (probability of exploitation in next 30 days)
- EPSS percentile
- 15.80% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24
NVD-assigned CWE(s):
CWE-770
(differs from the CNA list above)
NVD / KEV / EPSS data refreshed 2026-05-25 00:09 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2021-34814 - Assigner
- VulnCheck
- Published
- May 15, 2026, 6:36:28 PM
- Updated
- May 15, 2026, 9:14:26 PM
- EUVD base score (CVSS 4.0)
-
8.7 / 10
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N - EUVD-reported EPSS
- 0.0500
- Vendors
- WPGraphQL
- Products
-
WPGraphQL (1.3.5)
- Aliases
-
GHSA-3mgf-xgf9-2wg2
ENISA 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.
Vendor references (0)
References embedded in the original CVE record by the assigning CNA.
None in the CVE record.
Web references (6)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- https://nvd.nist.gov/vuln/detail/CVE-2021-47959 tenable:nvd.nist.gov
- https://www.cve.org/CVERecord?id=CVE-2021-47959 tenable:www.cve.org
- https://www.exploit-db.com/exploits/49807 tenable:www.exploit-db.com
- https://www.first.org/epss/ tenable:www.first.org
- https://www.vulncheck.com/advisories/wordpress-plugin-wpgraphql-denial-of-service tenable:www.vulncheck.com
- https://www.wpgraphql.com/ tenable:www.wpgraphql.com
NVD-tagged references (3)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://www.exploit-db.com/exploits/49807 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/wordpress-plugin-wpgraphql-denial-of-service disclosure@vulncheck.com
- https://www.wpgraphql.com/ disclosure@vulncheck.com
Remediations (10)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:cyberscoop.com
Threats Microsoft addresses 137 vulnerabilities in May's Patch Tuesday, including 13 rated critical The high volume of vulnerabilities reflects a growing trend researchers have been anticipating as artificial intelligence models are deployed to find previously uncovered defects in code.
2026-05-26 02:56 UTC -
web:discussions.unity.com
👉 If you have any questions, join us in the CVE Discussions forums and use the CVE Q&A Topic. 👈 This page allows you access the patch for your games and apps. It will be updated as needed. Watch this topic via the bell icon to receive notifications when updates become available. Patching Tool Update: New builds are now available. See below for latest (and older) builds Patcher Version 1. ...
2026-05-26 02:56 UTC -
web:nvd.nist.gov
The NVD is the U.S. government repository of standards based vulnerability management data represented using the Security Content Automation Protocol (SCAP). This data enables automation of vulnerability management, security measurement, and compliance. The NVD includes databases of security checklist references, security-related software flaws, product names, and impact metrics. For ...
2026-05-26 02:56 UTC -
web:portal.msrc.microsoft.com
The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.
2026-05-26 02:56 UTC -
web:securityboulevard.com
Cybersecurity vulnerabilities pose significant risks to organizations in today's digital landscape. Left unaddressed, these vulnerabilities can lead to data breaches, financial losses, and reputational damage. Organizations must decide how to tackle vulnerabilities—through remediation , mitigation , or a combination of both. But which strategy is more effective? This blog explores the ...
2026-05-26 02:56 UTC -
web:www.bugcrowd.com
Vulnerability mitigation is typically considered a temporary or interim solution. While mitigation measures can reduce the immediate risk associated with vulnerabilities, they may not provide a permanent fix . Organizations should aim to prioritize and plan for complete vulnerability remediation whenever feasible and allocate resources accordingly.
2026-05-26 02:56 UTC -
web:www.cve.org
At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures
2026-05-26 02:56 UTC -
web:www.rapid7.com
Remediation vs. mitigation : What are the differences? Once a vulnerability has been discovered, the ideal solution is to remediate it—to fix or patch the vulnerability before it can become a security threat.
2026-05-26 02:56 UTC -
web:www.secure.com
Learn the difference between vulnerability remediation and mitigation , and how a risk-based strategy can strengthen your security posture.
2026-05-26 02:56 UTC -
web:www.sentinelone.com
CVE -2025- 47959 is a command injection vulnerability in Microsoft Visual Studio 2022. Learn about its impact, affected versions, and mitigation methods.
2026-05-26 02:56 UTC
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