Security Research

Security Blog

Page 7

critical5 min

POST /api/generate Lacks Authentication, Allowing Unauthenticated

A resume generation endpoint in a Node.js backend accepted requests from any caller with network access, allowing attackers to consume OpenAI API quota without restriction. The vulnerability stemmed from missing authentication middleware on a cost-bearing endpoint. The fix adds mandatory API key validation via HTTP headers before processing any generation requests.

#authorization#api-security#authentication+3 more
A
anupamme
Sep 25, 2026
high7 min

escapeQuotes() Gap Lets File Names XSS Search Results

The desktop app's file-search results renderer built HTML strings from file names and paths using only `escapeQuotes()` and `escapeBackSlash()`, which strip quotes and backslashes but leave `<`, `>`, and `&` untouched. A file or folder named with an HTML payload such as `<img src=x onerror=alert(1)>` would execute when the matching search result was rendered, giving an attacker script execution in the app's DOM context.

#xss#cwe-79#output-encoding+3 more
A
anupamme
Sep 25, 2026
high4 min

brace-expansion DoS: Exponential Backtracking in Nested Brace Patterns

A critical vulnerability in brace-expansion allows attackers to cause denial of service by submitting specially crafted patterns with nested braces. The exponential-time complexity in pattern expansion creates a computationally expensive path that can freeze applications processing user-controlled input.

#security#brace-expansion#denial-of-service+5 more
A
anupamme
Sep 25, 2026
high4 min

smol-toml 1.7.0 DoS: Malformed TOML Documents Crash Parser

A denial-of-service vulnerability in smol-toml 1.7.0 allows attackers to crash the parser by supplying malformed TOML documents. The vulnerability affects any application that parses untrusted TOML input. The fix, available in smol-toml 1.7.1, hardens input validation and error recovery.

#injection#denial-of-service#npm+3 more
A
anupamme
Sep 25, 2026
critical6 min

Yandex Translate API Key Leaked via URL Query Parameter

The `translateYandex()` helper built its request URL by interpolating the caller-supplied API key directly into the query string, meaning every call leaked the credential into server access logs, proxy logs, and any Referer header sent by intermediaries. The fix switches the request from a GET with the key in the URL to a POST with the key in the request body via `URLSearchParams`, removing the credential from any URL-logging surface entirely.

#hardcoded-secrets#credential-exposure#nodejs+3 more
A
anupamme
Sep 25, 2026
high3 min

load_localStorage.js JSON Parse: Prototype Pollution via __proto__

The load_localStorage.js utility parsed JSON configuration without validating keys, permitting prototype pollution through malicious `__proto__`, `constructor`, or `prototype` properties. An attacker with filesystem access could poison downstream JavaScript execution by injecting these special keys into the loaded data structure.

#deserialization#javascript#prototype-pollution+3 more
A
anupamme
Sep 25, 2026
high4 min

generateUUID() Ditches MD5 for SHA-256 to Fix CWE-328

The `generateUUID()` helper built request-identifying UUIDs by hashing an input string with MD5, a cryptographically broken algorithm susceptible to collisions. The fix swaps the hash function for SHA-256, reducing the chance that two different inputs produce the same generated identifier.

#cryptography#cwe-328#javascript+3 more
A
anupamme
Sep 25, 2026
critical4 min

chrome.runtime.onMessage: Missing Sender Validation in Extension

A critical authentication flaw in a Chrome extension's message handling allowed arbitrary extensions and malicious web pages to trigger sensitive operations including script injection and tab manipulation. The vulnerability existed because chrome.runtime.onMessage listeners processed requests without verifying sender identity or origin, trusting any message source by default.

#authentication#chrome-extension#browser-security+3 more
A
anupamme
Sep 25, 2026
critical4 min

Google Generative AI Keys Exposed in Client-Side Fetch URLs

A client-side AI model discovery utility was embedding Google Generative AI API keys directly in fetch request URLs, making them visible to any user inspecting network traffic or browser DevTools. The fix moves the key from the URL query parameter to a secure HTTP header, eliminating exposure while maintaining API authentication.

#hardcoded-secrets#javascript#api-security+2 more
A
anupamme
Sep 25, 2026
critical4 min

backtest.js CLI args: Unvalidated --days and --start Options

The backtest.js command-line tool accepted --days and --start arguments without validation, creating a command injection vector when the script is invoked by upstream processes with untrusted input. The fix adds strict input validation: --days must be a positive integer ≤ 3650, and --start must match the YYYY-MM-DD date format.

#command-injection#javascript#nodejs+3 more
A
anupamme
Sep 25, 2026
high5 min

API_URL Defaults to HTTP Without HTTPS Enforcement

An API client defaults to unencrypted HTTP connections, leaving all API communications—including sensitive project data—vulnerable to interception. Although an `upgradeToHttps()` helper function existed, it was applied inconsistently across the codebase. The fix ensures HTTPS enforcement is applied uniformly before every HTTP request.

#cryptography#javascript#api-client+3 more
A
anupamme
Sep 25, 2026
high3 min

KNX Project Extractor ZIP Bomb: Unbounded Decompression Before Size

The KNX project extractor used `@zip.js/zip.js` to decompress .knxproj files without enforcing maximum entry sizes, total archive sizes, or compression ratios. This allowed attackers to upload ZIP bombs that expanded exponentially—like the famous 42.zip producing 4.5PB from 42KB—consuming all available memory before the existing `Checked` validation could trigger. The fix introduces three hard limits: 512MB per entry, 1GB total per archive, and a 100:1 compression ratio ceiling.

#security#zip-bomb#nodejs+3 more
A
anupamme
Sep 25, 2026