Hotanya Ragtah

Pentester turned AppSec Engineer.

I find security bugs in web apps and APIs, then help the teams who own them fix the root cause. Seven years of pentesting, now leading AppSec in-house. The interesting ones get written up here.

Hotanya Ragtah · Senior AppSec Engineer · New Zealand

Now
Senior AppSec Engineer7 years in security
Disclosures
7 findings disclosed2 CVEs issued, 2 pending
Talks
4 conference talksOWASP NZ Day, AppSec Days India
Certified
BSCP · CDP · AI-RTACAPen · CNPen · CCSP-AWS
advisoryCVE-2026-111442
A dark advisory cover reading "Backdrop CMS — Stored XSS via SVG Uploads", labelled CVE-2026-111442, fixed in 1.35.2 / 1.34.6
26 Oct 2026 · 6 min read

Stored XSS via SVG Uploads in Backdrop CMS

Two ways to get JavaScript past the SVG upload check in Backdrop CMS, one with a tab character and one with an SVG animate element. Both lead to stored XSS, fixed in 1.35.2 and 1.34.6.

xsssvgbackdrop-cmsopen-sourceappsec
  1. att. A · 2025JWT WTF?OWASP NZ Day
  2. att. B · 2024Thinking Like an AttackerAppSec Days India
  3. att. C · 2022Fantastic GraphQL BugsOWASP NZ Day
  4. att. D · 2022Getting Started in SecurityWaikato

Got an application that needs a second pair of eyes?

Happy to talk about security reviews, speaking, or research collaborations.

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