CVE-2026-34127

A stored cross-site scripting (XSS) vulnerability has been identified in the web management interface of TP-Link's TL-SG108PE v5 switch due to improper sanitation of the SYSNAM configuration parameter during configuration file import. An attacker with administrator access can inject malicious script into the device configuration, which may be stored and executed in the administrator’s browser when the affected interface is viewed. Successful exploitation may allow session cookie theft, unauthorized configuration changes, or access to sensitive information exposed through the management interface.

CVSS v3 4.8 MEDIUM

4.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.7 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://www.tp-link.com/en/support/download/tl-sg108pe/v5/#Firmware	Product
https://www.tp-link.com/us/support/download/tl-sg108pe/v5/#Firmware	Product
https://www.tp-link.com/us/support/faq/5110/	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tp-link:tl-sg108pe_firmware:1.0.1:*:*:*:*:*:*:*

cpe:2.3:h:tp-link:tl-sg108pe:5.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-29 20:16

Updated : 2026-07-22 06:10

NVD link : CVE-2026-34127

Mitre link : CVE-2026-34127

CVE.ORG link : CVE-2026-34127

JSON object : View

Products Affected

tp-link

tl-sg108pe
tl-sg108pe_firmware

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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An attacker with\nadministrator access can inject malicious script into the device configuration,\nwhich may be stored and executed in the administrator\u2019s browser when the\naffected interface is viewed.\u00a0 \u00a0\u00a0\n\n\n\n\n\nSuccessful\nexploitation may allow session cookie theft, unauthorized configuration\nchanges, or access to sensitive information exposed through the management\ninterface."}, {"lang": "es", "value": "Una vulnerabilidad de cross-site scripting (XSS) almacenado ha sido identificada en la interfaz de gesti\u00f3n web del switch TL-SG108PE v5 de TP-Link debido a una sanitizaci\u00f3n inadecuada del par\u00e1metro de configuraci\u00f3n SYSNAM durante la importaci\u00f3n del archivo de configuraci\u00f3n. Un atacante con acceso de administrador puede inyectar script malicioso en la configuraci\u00f3n del dispositivo, que puede ser almacenado y ejecutado en el navegador del administrador cuando se visualiza la interfaz afectada.\n\nLa explotaci\u00f3n exitosa puede permitir el robo de cookies de sesi\u00f3n, cambios de configuraci\u00f3n no autorizados o el acceso a informaci\u00f3n sensible expuesta a trav\u00e9s de la interfaz de gesti\u00f3n."}], "lastModified": "2026-07-22T06:10:00.170", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:tp-link:tl-sg108pe_firmware:1.0.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "10182445-7806-49DE-86AE-3F04ADC3F27B"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:tp-link:tl-sg108pe:5.0:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "17A11BAA-CD62-40ED-AD34-EC4ED3F692CB"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "f23511db-6c3e-4e32-a477-6aa17d310630"}