Security readout for executives and security teams
Plain-English summary
An authenticated user permitted to create or change Amplify Studio components could insert unsafe property expressions. Those expressions may execute arbitrary JavaScript while components are rendered or built, potentially compromising application data, generated output, and build environments.
Executive priority
Prioritize rapid assessment and remediation for organizations using Amplify Studio with delegated component editing. Treat exposed build environments as high priority because successful abuse may affect confidentiality, integrity, and availability. Escalate immediately if suspicious component changes or build activity are found.
Technical view
CVE-2025-4318 is a CWE-95 input-validation weakness in aws-amplify/amplify-codegen-ui. Crafted UI component property expressions can reach JavaScript evaluation during rendering and builds. Exploitation requires authentication and component modification privileges. The supplied CVSS 4.0 score is 9.0.
Likely exposure
Exposure is limited to environments using the affected Amplify code-generation package where authenticated users can create or modify components. The supplied affected record names version 0.1.0, while the referenced patch is v2.20.3; confirm exact installed versions and vendor guidance because the bundle does not fully explain that range.
Exploitation context
CISA KEV status is false in the supplied bundle, and no cited evidence establishes active exploitation. A public exploit-oriented analysis is referenced, indicating technical details may be available. Required authentication and component-editing privileges reduce reachability but do not eliminate insider, compromised-account, or excessive-permission risk.
Researcher notes
The critical impact depends on a privileged application workflow: attacker-controlled property expressions reaching JavaScript execution during rendering or build processing. Focus review on validation introduced by commit ca98c38 and release v2.20.3. Version scope is ambiguous in the supplied metadata, so avoid assuming all earlier releases are affected without vendor confirmation.
Mitigation direction
- Upgrade to the vendor-referenced patched release, amplify-codegen-ui v2.20.3.
- Restrict component creation and modification privileges to trusted users.
- Review AWS and GitHub advisories for precise affected-version guidance.
- Rebuild affected components and applications after updating the package.
Validation and detection
- Inventory Amplify projects and resolve the installed amplify-codegen-ui version.
- Identify accounts and roles allowed to create or modify Studio components.
- Review component property expressions for unexpected or untrusted JavaScript-like content.
- Inspect build and rendering logs for anomalous execution or unauthorized changes.
- Confirm dependency resolution uses the patched package in clean builds.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-95: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2025-4318 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H——AMZNVulnerability scoring details
Base CVSS 4.0 score
9CriticalVector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://aws.amazon.com/security/security-bulletins/AWS-2025-010/CVE reference, AMZN · vendor-advisory
- https://github.com/aws-amplify/amplify-codegen-ui/releases/tag/v2.20.3CVE reference, AMZN · patch
- https://github.com/aws-amplify/amplify-codegen-ui/security/advisories/GHSA-hf3j-86p7-mfw8CVE reference, AMZN · vendor-advisory
- https://blog.securelayer7.net/cve-2025-4318-aws-amplify-rce/CVE reference, CISA-ADP · exploit
- https://github.com/aws-amplify/amplify-codegen-ui/commit/ca98c38b7c3d69ae7c94d2f62b51e32e8165dae6CVE reference, CVE
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.