CVE-2026-77415 JSONata is a JSON query and transformation language. Prior to 1.8.8 and 2.2.1, crafted JSONata expressions could chain several object-integrity weaknesses to execute … cve.org/CVERecord?id=CVE-202…
Matt Greer retweeted
I didn’t expect this at @defcon
- I started praying for you at the end of my videos.
- It’s a little weird, can feel awkward but this is something I felt God leading me to do.
- I had no idea what the reaction would be.
—————> 2/3 of the interactions I have are people thanking me for the prayers.
- I’m overwhelmed. God is so good.
- I got a chance to pray with a few of you in person and that was powerful.
———> If you want/need some prayer, stop me and let’s pray.
Matt Greer retweeted
Next hacker summer camp giveaway!
3 seats to our “The Bug Hunters Methodology” course!
Like and share to be entered!
arcanum-sec.com/training/the…
Matt Greer retweeted
We are THRILLED to announce this year's BBV badge for DEF CON 34.
Huge shout-out to @intigriti for sponsoring the badge and making this possible. Because of them, we will have heaps of these to giveaway in-person FOR FREE
#BugBounty #DEFCON #BadgeLife
Matt Greer retweeted
Giveaway time!
Up for grabs is 3 free tickets to our “Attacking AI” live course!
Repost and like to enter!
arcanum-sec.com/training/att…
Matt Greer retweeted
Super excited to release our latest Broken Access Control (BAC) Masterclass on @hackinghub_io with 2 hours of content and almost 20 labs. I'm giving away 3 free seats to anyone who comments, reposts, and replies to this post. Drop a 🔥 below!
More info 👉🏼 hhub.io/BAC2026
Matt Greer retweeted
I analyze thousands of bug bounty content items every month. Less than 5% makes it to the newsletter.
I distilled those curated selections down to the top 25 resources for 2026 and put them in this PDF. It includes the top platforms, tools, and people that consistently deliver high signal content.
Comment RESOURCES and I'll DM you the PDF for free. (Make sure your DMs are open)
#BugBounty
I (and by I, I mean Claude lol) built a tool to easily output ffuf results, with regex, min/max, and include/exclude search features. I realize you can do this already with JQ, but it makes it easier IMO.
github.com/DFC302/ffufr
Matt Greer retweeted
Day FIVE of FIVE days of celebrating our 2 year ARCANUM-VERSARY! @arcanuminfosec
Giveaway = FOUR seats to our ONE OF A KIND course on Pentesting and Red Teaming AI Systems:
!! Attacking AI !!
New giveaway rules 👀 We are pumped about a new project we released today. The likes and shares need to be applied to this post for entry!
xitter.cf/Jhaddix/status/2013337…
👍 1 Like = 1 Entry!
♻️ 1 Share = 3 Entries! (yes, THREE entries)
Winners announced 1/23! Syllabus link below 👇
Matt Greer retweeted
For any Christians who follow me, I think you'll love what I just put up on the blog: josephthacker.com/personal/2…
Matt Greer retweeted
Day THREE of FIVE days of celebrating our 2 year ARCANUM-VERSARY! @arcanuminfosec
4th Giveaway = FOUR seats to our FLAGSHIP course on modern application assessment and recon:
The Bug Hunter's Methodology!
👍 1 Like = 1 Entry!
♻️ 1 Share = 2 Entries!
Winners announced 1/21! Syllabus link below 👇
Matt Greer retweeted
Day ONE of FIVE days of celebrating our 2 year ARCANUM-VERSARY! @arcanuminfosec
2nd Giveaway - We have 4 Swag Packs up for grabs!
Get a shirt, stickers, pens, a BADGE and more!
👍 1 Like = 1 Entry!
♻️ 1 Share = 2 Entries!
Winners announced 1/21!
enjoy our tshirt models @G0LDEN_infosec and @PhillipWylie 🫶
Matt Greer retweeted
Happy Arcanum-versary!
@arcanuminfosec 's 1st giveaway for the week is FOUR seats to our EPIC Advanced Client-Side Hacking course by myself and @xssdoctor !
👍 1 Like = 1 Entry!
♻️ 1 Share = 2 Entries!
Winners announced 1/21!
Syllabus for the course below 👇
Matt Greer retweeted
This week, Disclosed. (January 5, 2026) #BugBounty
New MVH crowned. A million dollar WAF hardening payout, a /health endpoint turning into a credential leak, and a ZIP upload workflow producing two criticals.
Full issue → getDisclosed.com
Preview below 👇
@vercel detailed a $1M paid effort with @Hacker0x01 to pressure-test and harden its WAF against React2Shell-class bypasses, including runtime mitigation and detection changes.
@pxmme1337 linked a newly launched anonymous forum for bug bounty discussions, with an optional verification mechanism aimed at proving bounty earnings.
@Hacker0x01 announced @alexbindrei as Most Valuable Hacker of H1-3120, framed around AI security research.
@Bugcrowd published a practical mapping of RCE pathways and detection methods, including command injection sinks; unsafe eval patterns; SSTI routes.
@intigriti CSP bypass material focused on permissive source expressions; nonce and hash misuse; overbroad allowlists that still land script execution or exfiltration.
@PortSwiggerRes published new SAML authentication bypass techniques tied to parser differentials in Ruby and PHP, including attribute pollution; namespace confusion; Void Canonicalization.
@aretekzs wrote up a chain from self-XSS constraints to account takeover via DOM injection plus login CSRF and cookie-tossing effects on auth state.
@xnl_h4ck3r shipped xnldorker v3.2 with Google Custom Search support and configuration changes aimed at smoother dorking workflows.
@zack0x01 released video material on broken access control testing and a recon workflow overview spanning asset discovery; prioritization; validation loops.
@medusa_0xf published a 2026 learning roadmap video centered on web and API hacking structure, with labs and category coverage.
@ctbbpodcast dropped “2025 Hacker Stats & 2026 Goals (Ep. 155)”, reflecting on 2025 trends and predictions for 2026 workflows and disclosure dynamics.
@NahamSec shared a 2025 findings retrospective video, focused on what made specific bugs interesting rather than full reproduction detail.
@H4cktus published “Can you compromise a multi-billion dollar company via /health?”, centered on a health check surface exposing environment variables and sensitive cloud configuration.
@_bergee_ published “Two crits, one zip”, two critical issues in a ZIP upload workflow, including symlink-based file access and a path to RCE via unsafe extraction processing.
@J0R1AN walked through the Intigriti December XSS Challenge (1225), using browser behaviors like iframe messaging; performance entries; regex edge cases.
@ptswarm research covered HTML-to-PDF generation stacks as a trust boundary that repeatedly turns into SSRF; local file disclosure; deserialization; DoS.
This is just a preview. Full links, write-ups & more → getDisclosed.com
The bug bounty world, curated.
Funny, how my very first paid bug was a subdomain takeover and my first paid bug of 2026 is a subdomain takeover. I'll take it.
Matt Greer retweeted
⚙️ Favlens helps map assets for a target by finding domains whose favicons are identical or visually similar to a known base favicon. This is useful for expanding visibility around a brand or organization. !🔥
created by @z0idsec 👏❤️
github.com/ethicalhackingpla…
#bugbounty #bugbountytip #bugbountytips #ethicalhacking #hacking #infosec #pentesting #PenetrationTesting
Matt Greer retweeted
After seeing an INCREDIBLE response at Wild West Hacking Fest for our new recon preso, we decided to do a FREE 4-hour workshop!
Join us Dec 8th!
executiveoffense.beehiiv.com…
Matt Greer retweeted
Giveaway brought to you by @hackinghub_io:
5x Blind XSS vouchers
5x Web Exploitation vouchers
How to enter:
1⃣ Follow @BugBountyDEFCON + subscribe to our YouTube channel
2⃣Follow @hackinghub_io
3⃣ ❤️+🔃 this post
4⃣Comment this post
Winners will be picked on Friday 8/29
Youtube channel: youtube.com/@BugBountyVillag…
And if you made it this far, you might as well join our other social media channels and subscribe to our mailing list!
it only takes a minute, and It helps us a lot, and makes possible to bring these giveaways to you.
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