Security research, bug bounty, and technical writeups.

CSRF on Password Reset Link leading to account takeover.
Have you ever thought of testing for CSRF vulnerability on a password reset link? You might not have, because we generally believe that it is not possible, as the password reset link itself contains a reset token which acts as an alternative for a CSRF token. I, too, once shared this assumption, but recently I encountered a CSRF vulnerability on a password reset link on a popular site. Since the vulnerability is still not patched, let’s refer to it as https://target.com ...

Dissecting CVE-2026-73613: Out-of-scope file deletion via symlink-following delete in TUS upload-cache eviction
Context: So apparently, the tool File Browser is retiring with the reason that the developers were no longer able to maintain its security or keep up with incoming vulnerabilities. So, I’ve decided to go through every publicly disclosed CVE affecting File Browser and, for each one, start with the original report/title and then trace it back into the source code to understand exactly where and why the vulnerability exists in the simplest way possible. ...