Category

Cwe 20

Security vulnerabilities and automated fixes for cwe 20 issues

4 posts found

critical8 min

How Unvalidated External Data Fetch happens in React and how to fix it

The Datasets.jsx component fetched a remote manifest from snapshots.qdrant.io and rendered its contents directly into React state without validating response status, JSON shape, or field types. A compromised or spoofed endpoint could have injected malicious payloads straight into the UI; the fix adds strict validation and type coercion before the data ever reaches the render tree.

#xss#injection#react+3 more
A
anupamme
Sep 7, 2026
critical6 min

How Insufficient Input Validation happens in TypeScript and how to fix it

A critical input validation vulnerability was discovered in `src/mcp/presets/commerce/inputs.ts` where the `normalizeCommerceAccountInput` function accepted loosely-typed `Record<string, any>` arguments without verifying field types or object structure. This allowed attackers to inject malicious payloads through MCP tool invocations. The fix adds explicit type guards and structural validation to ensure only properly-typed string values reach downstream consumers.

#security#input-validation#typescript+4 more
A
anupamme
Aug 15, 2026
critical7 min

How URL Injection via Unvalidated User Input happens in Node.js and how to fix it

A critical URL injection vulnerability in the QQ info lookup feature allowed attackers to manipulate API request parameters by sending specially crafted messages. Without proper input validation, user-controlled data was directly embedded into external API URLs, potentially exposing sensitive authentication credentials (skey and pskey) to attacker-controlled servers.

#url-injection#input-validation#nodejs+4 more
A
anupamme
Aug 5, 2026
critical5 min

How Remote Configuration Injection happens in JavaScript fetch() and how to fix it

A critical vulnerability in `js/config.js` allowed attackers to inject malicious configuration data through DNS spoofing or man-in-the-middle attacks. The application fetched remote JSON configuration from GitHub without validating the response structure, enabling arbitrary code execution through crafted payloads. A single validation check now ensures only properly-formed configuration objects are accepted.

#security#javascript#configuration-injection+4 more
A
anupamme
Jul 24, 2026