Discover how I made $200 by reporting an EXIF geolocation data vulnerability. Learn what EXIF is, how to find and test it, and the tools beginners can use for easy bug bounties.
📸 One Photo. One Mistake. One Easy Bounty.
A few days back, I was casually scrolling and testing on a private program during lunch — no expectations, just exploring.
I came across a feedback form that had a profile image upload feature. I uploaded a random photo from my phone and later downloaded it back from the platform.
Boom 💥 — the image still had my exact GPS coordinates, phone model, and timestamp embedded in it.
That one picture could’ve exposed where I live.
That’s when I realized: if a big company isn’t stripping image metadata, it’s not just a low-severity bug. It’s a massive privacy flaw — and an easy payout for any bug hunter who spots it.
Hi, I’m Anonymous — a part-time bug bounty hunter and full-time cybersecurity enthusiast. I write detailed, real-world methodologies to help beginners, so they can also find and report real bugs that get paid.
This blog isn’t just a success story — it’s a step-by-step blueprint anyone can follow.
EXIF (Exchangeable Image File Format) is metadata stored in image files like .jpg, .png, and .tiff. It includes:
- 🧭 Geolocation (Latitude/Longitude)
- 📷 Device Info (Phone/Camera model)
- 🕒 Timestamps (Date and time of capture)
If a web app allows users to upload images but doesn’t sanitize or strip this metadata, it could leak sensitive data when that image is shared or downloaded.
Imagine uploading a selfie and unknowingly exposing your home location.
For a journalist or activist, this could even become life-threatening.
🔍 Step 1: Identify Upload Points
Look for areas where users can upload images:
- Profile pictures
- Feedback or contact forms
- Blog posts or beta dashboards
Step 2: Upload an Image With EXIF Metadata
Take a photo with GPS/location turned ON. This embeds:
- Location
- Device model
- Timestamp
🔧 Verify metadata using:
Step 3: Download the Image Back
Now download the same image from the site.
Step 4: Analyze the Metadata Again
Use the same EXIF tool to check whether GPS or device data still exists.
✅ If yes — that’s your vulnerability.
After following the above steps, here’s what I discovered:
📤 Image uploaded to the site
📥 Image downloaded back from the site
Using jimpl.com, I checked the metadata. And here’s the below result:
💡 Real-World Impact: Why This “Small Bug” Isn’t Small
If exposed, attackers could:
- Pinpoint someone’s home or office
- Track movements and routines
- Plan physical or targeted social engineering attacks
🛠️ Tools You Can Use
🔧 EXIF Viewers:
📱 For Image Creation:
- Use your smartphone with GPS on
- Use tools like ExifTool, GIMP, or Photoshop to modify/test metadata
📝 For Reporting:
- Include screenshots of both uploads and downloads
- Provide metadata before vs after (PoC)
- Include impact explanation (esp. privacy violation)
✅ Clap (up to 50x)
💬 Leave a comment with your experience or questions
🔁 Share with fellow bug hunters
🔔 Follow me — I drop real-world bug bounty breakdowns every week!
💡 Remember: Every bug is a story. Every story can be your next bounty.