CVE-2026-120242Network attack vector

Authenticated browser-script injection via cloud URL parameter

Published Nov 1, 2026 · Updated Nov 1, 2026

XSS in Ruijie Networks RG-ES205GC firmware allows remote authenticated users to inject browser scripts via Cloud Management. The affected set_cloud_serverUrl.cgi endpoint accepts a crafted url argument; the precise rendering operation is undisclosed in the accessible evidence. Victim interaction is required, and the reported consequence is browser-side content manipulation rather than execution on the switch.

CVSS severityUnavailable
Unscored
EPSS probabilityUnavailable
No score available in this record
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XSS in Ruijie Networks RG-ES205GC firmware allows remote authenticated users to inject browser scripts via Cloud Management. The affected set_cloud_serverUrl.cgi endpoint accepts a crafted url argument; the precise rendering operation is undisclosed in the accessible evidence. Victim interaction is required, and the reported consequence is browser-side content manipulation rather than execution on the switch.

The record

CVE
CVE-2026-120242
Published
Nov 1, 2026
Updated
Nov 1, 2026
Vendor
Ruijie Networks
Product
RG-ES210GS-P
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Nov 1, 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=ESW_1.0(1)B1P48

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Ruijie Networks · RG-ES210GS-Pversion=ESW_1.0(1)B1P48
Ruijie Networks · RG-ES205GCversion=ESW_1.0(1)B1P48
Ruijie Networks · RG-ES208GCversion=ESW_1.0(1)B1P48
Ruijie Networks · RG-ES206GC-Pversion=ESW_1.0(1)B1P48
Ruijie Networks · RG-ES210GC-LPversion=ESW_1.0(1)B1P48

Published CVSS scores

No CVSS assessment is available in this record.

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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation
T1059.007JavaScript

Public exploit references

No public exploit references are available in this record.

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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