CVE-2026-28771Public exploitNetwork attack vector

Reflected XSS via unsanitized cat parameter

Published Mar 4, 2026 · Updated Mar 4, 2026

Reflected XSS in IDC SFX Series SuperFlex web management interface 101 allows remote attackers to execute script via the cat parameter. The /index.cgi handler reflects the cat value into the HTML response without sanitizing characters that create elements or scripts. Exploitation requires a victim's browser to request a crafted URL, after which script runs in the interface's browser origin and can read or alter page content.

CVSS severity5.1
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in IDC SFX Series SuperFlex web management interface 101 allows remote attackers to execute script via the cat parameter. The /index.cgi handler reflects the cat value into the HTML response without sanitizing characters that create elements or scripts. Exploitation requires a victim's browser to request a crafted URL, after which script runs in the interface's browser origin and can read or alter page content.

The record

CVE
CVE-2026-28771
Published
Mar 4, 2026
Updated
Mar 4, 2026
Vendor
International Datacasting Corporation
Product
SFX Series SuperFlex Satellite Receiver Web Management Interface
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=101

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

International Datacasting Corporation · SFX Series SuperFlex Satellite Receiver Web Management Interfaceversion=101

Published CVSS scores

6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.1GridwareCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001User Execution: Malicious Link

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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