TI-2026-83641 Aliases CVE-2026-120242 GHSA-7mq6-x8qc-4qch

Cross-site scripting in Ruijie RG-ES205GC Cloud Management

MEDIUM 55CWE-79Published 2026-11-01 · Updated 2026-11-06

Key facts

Attack vector: Network
Privileges required: High
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting, Code execution
Confidentiality · integrity · availability: None · Low · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79 and CWE-94.

Summary

Ruijie RG-ES205GC, RG-ES206GC-P, RG-ES208GC, RG-ES210GC-LP and RG-ES210GS-P with version ESW_1.0(1)B1P48 are affected by cross-site scripting in the Cloud Management component. The url argument of set_cloud_serverUrl.cgi is not neutralized before it is placed in a web page (CWE-79). A remote attacker with high privileges and user interaction can exploit the flaw. A public exploit has been released and may be used for attacks, and the vendor did not respond to early contact about this disclosure.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

A security flaw has been discovered in Ruijie RG-ES205GC, RG-ES206GC-P, RG-ES208GC, RG-ES210GC-LP and RG-ES210GS-P ESW_1.0(1)B1P48. The affected element is an unknown function of the file set_cloud_serverUrl.cgi of the component Cloud Management. The manipulation of the argument url results in cross site scripting. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00202 10th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Ruijie	RG-ES205GC	ESW_1.0(1)B1P48	—	No fix listed	CNA
Ruijie	RG-ES206GC-P	ESW_1.0(1)B1P48	—	No fix listed	CNA
Ruijie	RG-ES208GC	ESW_1.0(1)B1P48	—	No fix listed	CNA
Ruijie	RG-ES210GC-LP	ESW_1.0(1)B1P48	—	No fix listed	CNA
Ruijie	RG-ES210GS-P	ESW_1.0(1)B1P48	—	No fix listed	CNA

RG-ES205GC VendorRuijie Affected ESW_1.0(1)B1P48 Fixed in — No fix listed CNA
RG-ES206GC-P VendorRuijie Affected ESW_1.0(1)B1P48 Fixed in — No fix listed CNA
RG-ES208GC VendorRuijie Affected ESW_1.0(1)B1P48 Fixed in — No fix listed CNA
RG-ES210GC-LP VendorRuijie Affected ESW_1.0(1)B1P48 Fixed in — No fix listed CNA
RG-ES210GS-P VendorRuijie Affected ESW_1.0(1)B1P48 Fixed in — No fix listed CNA

CPE names CNA · 5

CPE	Versions	Role	Vendor
cpe:2.3:a:ruijie:rg-es205gc::::::::	—	—	Ruijie
cpe:2.3:a:ruijie:rg-es206gc-p::::::::	—	—	Ruijie
cpe:2.3:a:ruijie:rg-es208gc::::::::	—	—	Ruijie
cpe:2.3:a:ruijie:rg-es210gc-lp::::::::	—	—	Ruijie
cpe:2.3:a:ruijie:rg-es210gs-p::::::::	—	—	Ruijie

cpe:2.3:a:ruijie:rg-es205gc:*:*:*:*:*:*:*:* Versions — — ·Ruijie
cpe:2.3:a:ruijie:rg-es206gc-p:*:*:*:*:*:*:*:* Versions — — ·Ruijie
cpe:2.3:a:ruijie:rg-es208gc:*:*:*:*:*:*:*:* Versions — — ·Ruijie
cpe:2.3:a:ruijie:rg-es210gc-lp:*:*:*:*:*:*:*:* Versions — — ·Ruijie
cpe:2.3:a:ruijie:rg-es210gs-p:*:*:*:*:*:*:*:* Versions — — ·Ruijie

Remediation

The sources list no fixed version for Ruijie RG-ES205GC, RG-ES206GC-P, RG-ES208GC, RG-ES210GC-LP or RG-ES210GS-P.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Timeline

2026-11-01 Threatist record created from CVE-2026-120242
2026-11-01 Alias added: GHSA-7mq6-x8qc-4qch
2026-11-06 CISA SSVC decision points changed
2026-11-06 Priority changed: LOW → MEDIUM

References

Exploit 1

https://github.com/byseeker/Ruijie-RG-ES-Series-Switches_XSS

TI-2024-28677 The mqlink.elf is service component in Ruijie RG-EW300N with firmware ReyeeOS 1.300.1422… CVSS 3.1CRITICAL 9.8
TI-2024-16009 Insecure Permissions vulnerability in Ruijie RG-NBS2009G-P RGOS v.10.4(1)P2 Release… CVSS 3.1CRITICAL 9.8
TI-2019-12440 An issue was found on the Ruijie EG-2000 series gateway. CVSS 3.1CRITICAL 9.8
TI-2026-83640 Buffer overflow in Ruijie RG-ES205GC local firmware upgrade CVSS 4.0HIGH 8.7
TI-2026-62315 Ruijie RG-EW3000GX user_list_note admin os command injection CVSS 4.0CRITICAL 9.4
TI-2026-62314 Ruijie RG-EW3000GX configChange unifyframe-sgi.elf cc_set os command injection CVSS 4.0CRITICAL 9.4

See all 114 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences