CVE-2025-4318

CRITICALNVD 9.59.5—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.5 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 53% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

The AWS Amplify Studio UI component property expressions in the aws-amplify/amplify-codegen-ui package lack input validation. This could potentially allow an authenticated user who has access to create or modify components to run arbitrary JavaScript code during the component rendering and build process.

CVSS v3
9.5
EG Score
9.5(medium)
EPSS
59.2%
KEV
Not listed

Published

May 5, 2025

Last Modified

April 15, 2026

Advisory Details (5)

Auto-updated Jul 15, 2026
🔬 Proof of concept available. Patch available. Sources: github_release, github, github_commit.
generic🟡 PoC Available

CVE-2025-4318: RCE in AWS Amplify Studio via Unsafe Evaluation

https://blog.securelayer7.net/cve-2025-4318-aws-amplify-rce/
github Patch Available

Input Validation Issue in AWS Amplify Studio UI Component Properties · Advisory · aws-amplify/amplify-codegen-ui · GitHub

https://github.com/aws-amplify/amplify-codegen-ui/security/advisories/GHSA-hf3j-86p7-mfw8
github_commit Patch Available

commit ca98c38b7c3d (aws-amplify/amplify-codegen-ui)

Patch available: aws-amplify/amplify-codegen-ui v2.20.3 (contains commit ca98c38b7c3d)

https://github.com/aws-amplify/amplify-codegen-ui/commit/ca98c38b7c3d69ae7c94d2f62b51e32e8165dae6
github_release Patch Available

Release v2.20.3

Patch available: aws-amplify/amplify-codegen-ui v2.20.3

https://github.com/aws-amplify/amplify-codegen-ui/releases/tag/v2.20.3
generic

CVE-2025-4318 - Input validation issue in AWS Amplify Studio UI component properties

https://aws.amazon.com/security/security-bulletins/AWS-2025-010/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 46× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 126 total refreshes for this CVE.

  1. 2026-07-22 14:07 UTCEPSS rescore
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  1. 2026-07-07 13:45 UTCEPSS rescore
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  44. 2026-06-10 13:22 UTCEPSS rescore
  45. 2026-06-08 16:16 UTCEG score recompute▲ 9.50
  46. 2026-06-08 14:16 UTCEPSS rescore
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  48. 2026-06-07 15:24 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2025-4318?
CVE-2025-4318 is a critical vulnerability published on May 5, 2025. The AWS Amplify Studio UI component property expressions in the aws-amplify/amplify-codegen-ui package lack input validation. This could potentially allow an authenticated user who has access to create or modify components to run arbitrary JavaScript code during the component rendering and build…
When was CVE-2025-4318 disclosed?
CVE-2025-4318 was first published in the National Vulnerability Database on May 5, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-4318 actively exploited?
CVE-2025-4318 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 59.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-4318?
CVE-2025-4318 has a CVSS v3 base score of 9.5 (NVD).
How do I remediate CVE-2025-4318?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-4318, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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