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CBSE OnMark Portal Hack 2026

CBSE OnMark Portal Hack 2026.       

How a 19-Year-Old Hacker Exposed India's Biggest Education Data Breach: The CBSE OnMark Portal Hack 2026By Neeshant | June 19, 2026Imagine a system responsible for the future of millions of students, built with vulnerabilities so glaring that a 19-year-old could bypass them using just a web browser. This isn't the plot of a cyberpunk thriller; it's exactly what happened with the CBSE OnMark Portal in early 2026.In this deep dive, we will explore how Nisarga Adhikary, a teenager from Siliguri, uncovered critical security flaws in the Central Board of Secondary Education's (CBSE) digital answer sheet checking system, exposing the data of over 2 million students.The Setup: A Flawed FoundationThe story begins in 2025 when CBSE decided to digitize its evaluation process through an On-Screen Marking (OSM) system. The tendering process itself was fraught with red flags. After two failed attempts where major players like TCS couldn't meet the technical requirements, the criteria were mysteriously "diluted" in August 2025. This allowed a Hyderabad-based vendor, Coempt Eduteck, to win the contract.This compromise in technical standards set the stage for a catastrophic security failure.The Discovery: Inspect Element to the RescueOn February 25, 2026, Nisarga Adhikary visited the CBSE OSM portal (cbse.onmark.co.in). What started as simple curiosity quickly turned into a massive discovery. By simply using the "Inspect Element" tool (Ctrl+Shift+I) in his browser, Nisarga uncovered a treasure trove of vulnerabilities.

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