How I Found a Critical IDOR Leading to Account Takeover in Two EdTech Platforms
The vulnerability was an Insecure Direct Object Reference (IDOR) in two EdTech platforms, allowing account takeover through user profile manipulation. The flaw resulted from improper input validation, leading to user profiles being accessible via URL parameters. By constructing carefully crafted URLs containing other users' IDs, the researcher accessed their profiles without proper authentication. The attack vector involved using Burp Suite's Intruder tool to automate IDOR requests, sending payloads with incremental user IDs. The mechanism revolved around the application trusting the provided IDs without verifying their ownership or performing proper authorization checks. This IDOR flaw enabled the researcher to impersonate other users, potentially causing serious account takeovers. The researcher did not disclose specific bounty amounts or program responses. Proper mitigation requires implementing strict input validation and enforcing proper access control checks. Key lesson: Always validate user inputs and enforce proper access control to prevent unauthorized data access. #BugBounty #Cybersecurity #WebSecurity #IDOR #AccountTakeover #InputValidation

https://medium.com/@impyhacker/how-i-found-a-critical-idor-leading-to-account-takeover-in-two-edtech-platforms-44439a66ceb3?source=rss------bug_bounty-5

Fantastic Demos of Web Hacking featuring bug bounty hunter Justin Gardner!

Learn about IDOR, XSS and more.

YouTube video: https://youtu.be/KBIQE9fo8mU

Big thanks to ThreatLocker for sponsoring my trip to ZTW26 and also for sponsoring this video.

#xss #bug #bounty #idor #hack #hacking #hacker #career

OWASP Juice Shop — BOLA: Unauthorized Basket Access | Security Assessment Finding
This vulnerability is an Insecure Direct Object References (IDOR) issue. The root cause was a flawed implementation in the OWASP Juice Shop application, which allowed access to other users' shopping baskets through manipulating the URL's basket ID parameter. A malicious user could view, modify, or delete another user's shopping basket without proper authorization. The researcher discovered this by observing a predictable pattern in the URL structure of basket IDs. The attack vector involved simply modifying the basket ID parameter in the URL, leading to unauthorized access to other users' baskets. The application logic was based on trusting the user-controlled basket ID parameter, without any validation or access control checks. This vulnerability could potentially lead to data breaches, unauthorized purchases, or account takeovers. The researcher was awarded a bounty of $200 for the finding. To remediate, enforce access controls and implement proper validation for basket IDs before making sensitive operations. Key lesson: Always validate user inputs and enforce proper access controls. #BugBounty #WebSecurity #IDOR #DataBreach #Infosec

https://medium.com/@premwork25/owasp-juice-shop-bola-unauthorized-basket-access-security-assessment-finding-65e1f6b8a46b?source=rss------bug_bounty-5

IDOR Mastery: From Basic ID Changes to Advanced Techniques That Pay $10K+ Bounties
This article details Insecure Direct Object Reference (IDOR) exploitation techniques, some resulting in $10,000+ bug bounty payouts. The root cause of these vulnerabilities lies in developers not validating user-controlled inputs when accessing other users' data, leading to unauthorized access and data disclosure. The researcher demonstrated various IDOR techniques using simple ID swapping and advanced methods like time-based and content-based blind IDOR, as well as chaining IDOR with other vulnerabilities. These techniques allow attackers to manipulate and access data they should not have access to. The payout amounts ranged from $1,000 to $15,000, with programs responding quickly and taking the vulnerabilities seriously. Remediation includes input validation, access control, and authorization checks. Key lesson: Always validate user-controlled inputs when accessing other users' data to prevent IDOR vulnerabilities. #BugBounty #WebSecurity #IDOR #Cybersecurity #InputValidation

https://medium.com/@bughuntersjournal/idor-mastery-from-basic-id-changes-to-advanced-techniques-that-pay-10k-bounties-1f106016e039?source=rss------bug_bounty-5

Chaining IDOR to Admin Panel Takeover to SQLI
This article details a series of vulnerabilities: IDOR (Insecure Direct Object Reference), unauthorized access to admin panel, and SQL Injection. The root cause lay in a lack of access control checks on user-supplied input, allowing an attacker to manipulate another user's referral data via IDOR. By chaining multiple IDORs, the researcher gained access to the admin panel. Within the admin panel, an SQL Injection vulnerability enabled the attacker to execute arbitrary SQL queries, leading to unauthorized data access and potential data breaches. The attack vector involved crafting specific referral IDs to exploit the IDOR and manipulate account data, eventually gaining access to the admin panel and executing SQL Injection payloads. The impact was significant, as it allowed full control over the application's data and configuration. The researcher received a $5000 bounty. To fix this, implement proper access control checks on user-supplied input, sanitize and validate all input data, and use parameterized queries to prevent SQL Injection attacks. Key lesson: Always validate and sanitize user input and implement least privilege access controls. #BugBounty #IDOR #SQLInjection #WebSecurity #AdminPanelTakeover

https://medium.com/@dsmodi484/chaining-idor-to-admin-panel-takeover-to-sqli-b2ce412e5259?source=rss------bug_bounty-5

Ravenna Hub IDOR flaw exposed 1.6M+ student records.

Authenticated users could access unauthorized profiles via URL manipulation.

Sensitive child & parent PII impacted.

Read:
https://www.technadu.com/student-admissions-website-ravenna-hub-data-breach-exposes-child-information/620558/

How should EdTech strengthen auth controls?

#InfoSec #AppSec #IDOR #DataBreach

WebSocket Penetration Testing: How to Test for WebSocket Hijacking, IDOR, Injection & More
This article discusses using the WSStrike extension in Burp Suite for comprehensive WebSocket penetration testing. The vulnerability class includes WebSocket hijacking, IDOR (Insecure Direct Object References), and injection attacks. The root cause lies in weak implementation of WebSocket security measures, such as lacking proper authentication or validation checks. Researchers exploited this by intercepting WebSocket traffic using WSStrike, injecting malicious payloads to manipulate application behavior. For instance, an IDOR issue was exposed when the researcher manipulated a user's session token to access another user's data. The technical details revolve around analyzing and interacting with WebSocket communication protocols and their security flaws. The impact of these vulnerabilities can range from unauthorized access to sensitive data, account takeover, or even complete system compromise. WSStrike helped reveal a bounty of $10,000 for finding multiple critical issues in a platform. To prevent such attacks, enforce strong authentication and authorization mechanisms, validate input data, and regularly audit WebSocket implementation. Key lesson: Always prioritize security when implementing WebSocket communication. #BugBounty #WebSecurity #WebSocket #IDOR #Injection

https://medium.com/@exploitersorigin/ws-strike-a-burp-suite-extension-for-websocket-penetration-testing-b2fe9676da07?source=rss------bug_bounty-5

The Logic Flaw That Leads to Total Control: Mastering Account Takeovers in 2026
This vulnerability falls under the Authentication Bypass class, specifically Logical Account Takeover. ZACK0X01's tutorial reveals that attackers can bypass multi-factor authentication (MFA) by exploiting subtle disconnects in authentication flows. The researcher manipulates responses and leverages Insecure Direct Object References (IDOR) to gain control of any user account. By observing patterns in error messages, the researcher found opportunities to intercept MFA codes or bypass MFA checks entirely. The critical severity (CVSS ~9.8) demonstrates the devastating impact: complete account takeover and unauthorized access to sensitive data. The tutorial offers actionable insights for finding this high-impact vulnerability class in web applications. Key lesson: Look beyond syntax errors, focus on business logic flaws to master account takeovers. #BugBounty #WebSecurity #AuthenticationBypass #IDOR #AccountTakeover

https://infosecwriteups.com/the-logic-flaw-that-leads-to-total-control-mastering-account-takeovers-in-2026-aecef6d30bd9?source=rss------bug_bounty-5