High
CVSS 7.2 Deeplink Hijacking Responsible Disclosure
Disclosure
TWA JavaScript Bridge Launches Arbitrary URLs Inside Auth Context
TWA JS bridge exposes openUrl method without allowlist, usable by embedded ads or nested iframes.
- Target
- Indian Investment Broker
- Category
- Deeplink Hijacking
- Channel
- Responsible Disclosure
- Disclosed
- 2026-04
Redaction note
Vendor identity withheld.
This finding is documented here as part of MemCyber’s public disclosure record. The vendor has been anonymized to a sector and region descriptor. Full technical detail — including root cause, reproducible proof-of-concept, remediation guidance, and vendor attribution where granted — is available to qualified prospects under NDA.
Coordinated disclosure
How we handled it.
- Reported to the vendor via Responsible Disclosure with a reproducible proof-of-concept.
- Triage + remediation window coordinated with the vendor security team.
- Fix verified before any public reference.
- This record published only after the embargo period closed.