Cross-Site Scripting in react

Answer in brief

CVE-2013-7035 records a Medium severity vulnerability in Cross-Site Scripting in react. The current sources do not mark it as known exploited. The current feed maps react (npm), react (npm). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 4, 2020Updated May 22, 2023Source checked Aug 26, 2026First seen by HOL Aug 25, 2026Material review May 22, 2023

Upstream Advisory

Key facts

Risk: Medium
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps react (npm), react (npm). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
reactnpm	>=0.4.0,<0.4.2	0.4.2
reactnpm	>=0.5.0,<0.5.2	0.5.2

Recommended response

Check inventory. Check lockfiles and deployed manifests for react, react.
Review the reported fix. Update react to 0.4.2; react to 0.5.2 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 4, 2020
Evidence: source:ghsa:source_dates:source-dates:record
Source modified
May 22, 2023
Evidence: source:ghsa:source_dates:source-dates:record
First seen by HOL
Aug 25, 2026

Sources and claim methodology

Upstream source description

Affected versions of `react` are vulnerable to Cross-Site Scripting (XSS). The package fails to properly sanitize input used to create keys. This may allow attackers to execute arbitrary JavaScript if a key is generated from user input. ## Recommendation If you are using `react` 0.5.x, upgrade to version 0.5.2 or later. If you are using `react` 0.4.x, upgrade to version 0.4.2 or later.

Quoted source text, attributed separately from HOL analysis.