geekboyranjeet's profile picture. Cyber Security Researcher

Ranjeet Singh

@geekboyranjeet

Cyber Security Researcher

Ranjeet Singh รีโพสต์แล้ว

Slonser's Chrome 0day


Ranjeet Singh รีโพสต์แล้ว

Facebook page admin and email disclosure philippeharewood.com/page-admin-and…


Ranjeet Singh รีโพสต์แล้ว

I like to bypass XSS filters and sanitizers, so I keep forgetting to test for CSS exfiltration when I have HTML injection. This reminded me of the sic tool by @d0nutptr from a Singapore LHE, but there's also a cool list from @PortSwigger 👇 github.com/PortSwigger/cs…


Ranjeet Singh รีโพสต์แล้ว

2 AM in a Tokyo hotel room: @assetnote x Depi find a Dependency Confusion vuln that lands RCE on Netflix ! 🚀 Shout-out to @infosec_au for the "keep digging" spark & Netflix security for stellar triage. Full write-up in thread 🧵

0xLupin's tweet image. 2 AM in a Tokyo hotel room: @assetnote  x Depi find a Dependency Confusion vuln that lands RCE on Netflix !

🚀 Shout-out to @infosec_au  for the "keep digging" spark & Netflix security for stellar triage. Full write-up in thread 🧵

Ranjeet Singh รีโพสต์แล้ว

10 ways to encode IPs to bypass validations 👇 8.8.1028 → Partial Decimal (Class B) Combines the 3rd and 4th octets: 4 × 256 + 4 = 1028 8.525316 → Partial Decimal (Class A) Combines the last three octets into one decimal number 0x08.8.004.004 → Mixed Encoding Hexadecimal +…

0xacb's tweet image. 10 ways to encode IPs to bypass validations 👇

8.8.1028 → Partial Decimal (Class B)
Combines the 3rd and 4th octets: 4 × 256 + 4 = 1028

8.525316 → Partial Decimal (Class A)
Combines the last three octets into one decimal number

0x08.8.004.004 → Mixed Encoding
Hexadecimal +…

Ranjeet Singh รีโพสต์แล้ว

This is how DOM clobbering works. When you create an element with an id, the browser automatically creates a global variable for that ID: <a id="foo"></a> Now window.foo points to that single element. But when you create multiple elements with the same id: <a…


Ranjeet Singh รีโพสต์แล้ว

This #NahamCon2025 talk has generated over $50,000 in bounties for @YShahinzadeh and a few other hackers: Puny-Code, 0-Click Account Takeover. 🎥👉🏼youtu.be/4CCghc7eUgI

NahamSec's tweet image. This #NahamCon2025 talk has generated over $50,000 in bounties for @YShahinzadeh and a few other hackers: Puny-Code, 0-Click Account Takeover. 

🎥👉🏼youtu.be/4CCghc7eUgI

Ranjeet Singh รีโพสต์แล้ว

<img srcset=1 onerror=alert(1)>


Ranjeet Singh รีโพสต์แล้ว

This includes a fun trick with User Activation. It can be used to detect when actions like shortcuts and clicks happen inside cross-origin iframes:

J0R1AN's tweet image. This includes a fun trick with User Activation. It can be used to detect when actions like shortcuts and clicks happen inside cross-origin iframes:

Ranjeet Singh รีโพสต์แล้ว

I think many people are familiar with the topic of blind CSS exfiltration, especially after the post by @garethheyes However, an important update has occurred since then, which I wrote below ->


Ranjeet Singh รีโพสต์แล้ว

🚨 1st KNOXSS GIVEAWAY of 2025 ! 🚨 LIKE + SHARE this to have a chance to win one of the following subscriptions: 1 Pro 3-month 1 Pro 6-month 1 Pro 1-year Winners of the draw will be announced next week. Good luck! 😀 knoxss.pro - XSS for pros.

KN0X55's tweet image. 🚨 1st KNOXSS GIVEAWAY of 2025 ! 🚨  

LIKE + SHARE this

to have a chance to win one of the following subscriptions:  

1 Pro 3-month 
1 Pro 6-month 
1 Pro 1-year

Winners of the draw will be announced next week.

Good luck! 😀

knoxss.pro - XSS for pros.

Ranjeet Singh รีโพสต์แล้ว

the research paper is out: Next.js and the corrupt middleware: the authorizing artifact result of a collaboration with @inzo____ that led to CVE-2025-29927 (9.1-critical) zhero-web-sec.github.io/research-and-t… enjoy the read!

zhero___'s tweet image. the research paper is out:

Next.js and the corrupt middleware: the authorizing artifact

result of a collaboration with @inzo____ that led to CVE-2025-29927 (9.1-critical)

zhero-web-sec.github.io/research-and-t…

enjoy the read!

Ranjeet Singh รีโพสต์แล้ว

This bug is NUTS. @xssdoctor spent so much time, moved heaven and earth, and bent the app to his will. Normally something like this would be a Critical Thinkers drop on the CTBB Discord. But today, we'll drop the explanation live, and the lab will be in Cters on Discord.


Ranjeet Singh รีโพสต์แล้ว

We just released a new article on how we made 50,000$ in #BugBounty by doing a really cool Software Supply Chain Attack🔥 🔗Link: landh.tech/blog/20250211-…

0xLupin's tweet image. We just released a new article on how we made 50,000$ in #BugBounty by doing a really cool Software Supply Chain Attack🔥

🔗Link: landh.tech/blog/20250211-…

Ranjeet Singh รีโพสต์แล้ว

⚠️ Giveaway time! ⚠️ 👇 📢 Our new course "Attacking AI" will be Feb 27-28! This two-day course equips security professionals with the tools and methodologies to identify vulnerabilities in AI systems. It's gonna be a BANGER. Syllabus: payhip.com/b/2qPZ1 We are giving…

payhip.com

Arcanum Information Security

Arcanum Information Security


Ranjeet Singh รีโพสต์แล้ว

HackenProof Hall of Fame: Weekly Edition! Say hello to our cyber rockstars who crushed it this week: 🏅 MVP: @KAVEYJOE – The ultimate Web3 guardian! ⚡ Rising Star: @geekboyranjeet – Making waves with every report! 🔥 Top Contributor: @Kerolos700 – A powerhouse of skills!…

HackenProof's tweet image. HackenProof Hall of Fame: Weekly Edition! 

Say hello to our cyber rockstars who crushed it this week:

🏅 MVP: @KAVEYJOE  – The ultimate Web3 guardian!
⚡ Rising Star: @geekboyranjeet  – Making waves with every report!
🔥 Top Contributor: @Kerolos700  – A powerhouse of skills!…

Ranjeet Singh รีโพสต์แล้ว

Huge Congrats to Last Week’s Top Hackers! Let’s celebrate the outstanding achievements of our top-3 leaderboard heroes: 🥇 @LadsDem – Setting the standard for excellence! 🥈 @geekboyranjeet – Pushing boundaries with every report! 🥉 @ssankhwarfbl – A powerhouse of…

HackenProof's tweet image. Huge Congrats to Last Week’s Top Hackers! 

Let’s celebrate the outstanding achievements of our top-3 leaderboard heroes:

🥇 @LadsDem – Setting the standard for excellence!
🥈 @geekboyranjeet – Pushing boundaries with every report!
🥉 @ssankhwarfbl – A powerhouse of…

Honored to receive a reward and certificate of contribution from @NCIIPC for supporting the protection of critical information infrastructure by identifying key vulnerabilities. #bugbounty #hacking #nciipc

geekboyranjeet's tweet image. Honored to receive a reward and certificate of contribution from @NCIIPC for supporting the protection of critical information infrastructure by identifying key vulnerabilities.

#bugbounty #hacking #nciipc

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