In many bug bounty programs and security teams, reflected XSS has earned a reputation as “boring.” It is often downgraded to a low-severity issue because it typically requires a user to click a crafted link or interact with suspicious input. But what happens when you remove that dependency on user
What is PII Data? PII (Personally Identifiable Information) includes data that can identify a person—names, emails, phone numbers, Aadhaar, SSN, IPs, and more. Learn PII types, examples, and risks.
In this article, we will discuss the bugs that are most likely to appear in web apps in 2026. These are the issues that help you stand out from the crowd by focusing on real impact rather than sheer volume.
Traditional secret scanning in security research often starts with: grep or similar CLI tools. Tools like Jsmon are built around this model, using regex as a first pass and Abstract Syntax Trees (ASTs) for the deeper, contextual analysis.
Today, attackers increasingly focus on: DOM-based XSS, where the vulnerability exists in client-side JavaScript logic. Blind XSS, where payloads execute in backend admin panels or internal tools, often out of sight.
React2Shell (CVE-2025-55182) is an unauthenticated remote code execution (RCE) vulnerability affecting React Server Components (RSC). An attacker can send a specially crafted request that is deserialized and executed on the server, leading directly to arbitrary code execution
A Deep Dive into Enterprise Deployments, DevOps Reality, and External Attack Surfaces. Subdomains - most consistently exploited attack surfaces.
Security researchers and bug hunters, the game just changed. We are thrilled to announce the latest version of the Jsmon Burpsuite Extension. In previous versions, the extension acted primarily as a bridge, you could configure settings and send URLs to Jsmon, but you had to switch back to the Jsmon
This report provides a detailed analysis of a major, campaign attack that unfolded on 15 September 2025. One campaign, known as the "Shai-Halud attack," compromised packages belonging to cybersecurity firm CrowdStrike, targeting their internal CI/CD pipelines.
Subdomain enumeration is a very important tactic in bugbounty or in general cybersecurity research. It helps you to uncover hidden attack surface. In this blog, we'll dive into top 5 subdomain enumeration or discovery tools that every hackers almost uses.
403 errors are crucial during bug hunting and penetration testing. When bypassed, they can reveal sensitive information that leads to substantial bounties. Understanding and bypassing these errors is essential for earning good bounties and avoiding duplicate submissions.
The browser console is an integrated developer tool found in most modern web browsers, such as Chrome, Firefox, and Safari. It enables developers to monitor and interact with different elements of a webpage, including errors, warnings, logs, and network activity.
bug bounty
Amazon S3 bucket takeovers are a common and impactful vulnerability in web applications. When a JavaScript file references an S3 bucket that no longer exists (but is still expected to serve assets), attackers can claim ownership of that bucket and serve malicious content in its place.
dependency confusion
A Dependency Confusion attack, also known as a substitution attack, occurs when a malicious actor uploads a package with the same name as an internal or private dependency to a public package registry. If the development
second order domain takeover
Second-order domain takeovers target forgotten domains still referenced in live JavaScript files. This overlooked threat can lead to serious security risks. Learn how to detect them manually—or automate the entire process with jsmon.sh.
bugbounty
When hunting for vulnerabilities or hidden endpoints in web applications, archived JavaScript files can be a goldmine. These scripts often contain forgotten or deprecated URLs, API endpoints, and internal services that might still be alive but are no longer linked from the main website. In this post, we’ll walk
katana
When mapping out the attack surface of an application, JS files often contain a wealth of valuable information, API endpoints, keys, hidden paths, and more. One powerful tool that helps automate the discovery of these files is Katana, a fast and extensible web crawling framework by ProjectDiscovery.
bugbounty
When performing reconnaissance or source code reviews, JavaScript files are a goldmine of leaked credentials, secrets, tokens, and other sensitive artifacts. This blog post is a curated resource library of 100 regex patterns designed to help security researchers and engineers.
bugbounty
APIs are the backbone of modern applications, but they often leak sensitive information through JavaScript files, misconfigurations, and weak security measures. This checklist focuses on API hacking techniques, with special attention to JavaScript file analysis.
bugbounty
jsmon-cli is a fast and convenient tool (API client) for your JS hacking powered by jsmon.sh. jsmon.sh is a JS security framework made for security enthusiasts, bugbounty hunters, penetration testers
bug bounty
Mapbox is a powerful mapping platform that offers customizable maps, geocoding, and location-based services through its APIs and SDKs. However, when API tokens lack proper URL restrictions, they become a prime target for abuse. In this research, we
The Jsmon Burpsuite extension is designed for security researchers to enhance their web security testing by integrating Jsmon's javascript scanning and monitoring capabilities directly into Burpsuite. This integration streamlines the process of identifying and analyzing client-side exposures, secrets and vulnerabilities during your manual web security flow. Key Features:
In today's competitive landscape of bugbounties, it's very important for a bug bounty hunter to monitor what developers are changing or adding in the applications. The moment developers changes feature X or adds feature Y, javascript on the client side will be modified too.
jsmon.sh
I was sitting on the last day of the H1702 Epic Games event. I've submitted a few bugs to Epic Games and it was the last day, I was not getting any idea on what else to submit. I decided to use my own product jsmon.sh. Collecting