CVE-2025-4318Public exploitNetwork attack vector

Arbitrary JavaScript execution via unsanitized property expressions

Published May 5, 2025 · Updated Jul 29, 2026

Eval injection in AWS Amplify Studio 0.1.0 through 2.20.2 allows remote authenticated users to execute arbitrary JavaScript. The expression-binding function converts unvalidated component-schema property values into executable expressions during rendering and builds. An account permitted to create or modify UI components can supply a malicious schema, causing code to run in the rendering and build context.

CVSS severity9.0
Critical
EPSS probability0.94%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Eval injection in AWS Amplify Studio 0.1.0 through 2.20.2 allows remote authenticated users to execute arbitrary JavaScript. The expression-binding function converts unvalidated component-schema property values into executable expressions during rendering and builds. An account permitted to create or modify UI components can supply a malicious schema, causing code to run in the rendering and build context.

The record

CVE
CVE-2025-4318
Published
May 5, 2025
Updated
Jul 29, 2026
Vendor
Amazon Web Services
Product
AWS Amplify Studio
Classifications
CWE-95, CAPEC-251, CAPEC-592, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 5, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 29, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.1.0 <2.20.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Amazon Web Services · AWS Amplify Studioversion=0.1.0 <2.20.3

Published CVSS scores

9.0Amazon Web ServicesCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-95Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
CAPEC-251Local Code Inclusion
CAPEC-592Stored XSS
T1059.007JavaScript/JScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo