CVE-2026-28771 Reflected XSS In /index.cgi Endpoint On IDC Satellite Receiver Web Management Interface Version 101
Remote attackers can execute arbitrary JavaScript in victim browsers via unsanitized input in the satellite receiver's web management interface.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-28771?
CVE-2026-28771 is a medium-severity cross-site scripting vulnerability in International Datacasting Corporation (IDC) SFX Series SuperFlex Satellite Receiver Web Management Interface, published on 4 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-28771?
It affects 1 product.
Products include Datacast Sfx2100 Firmware.
How do I fix CVE-2026-28771?
No fix has been published for CVE-2026-28771 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-28771 being exploited?
There is no known exploitation of CVE-2026-28771 in the wild and no public exploit code.
Other vulnerabilities in International Datacasting Corporation (IDC) SFX Series SuperFlex Satellite Receiver Web Management Interface
- CVE-2026-28775 Unauthenticated RCE via SNMP Default Writable Community String
- CVE-2026-28773 Authenticated OS Command Injection via Ping Utility Leading to RCE as Root
- CVE-2026-28774 Authenticated OS Command Injection via Traceroute Utility leads to Root RCE
- CVE-2026-29127 Incorrect Permission Assignment(777) on `monitor` Users Home Directory Containing SUID Root Binaries in IDC SFX2100
- CVE-2026-28777 Hardcoded and Insecure Credentials for "User" Local Account with SSH Access On IDC SFX2100 Satellite Receiver
Sources
Also known as GHSA-93hr-p8j2-w3j4.