CVE-2026-34127 MEDIUM

CVE-2026-34127: Stored Cross-Site Scripting (XSS) via Configuration File Import on TP-Link's TL-SG108PE

Vendor Tp-Link Systems Inc.
Product TL-SG108PE v5
Weakness CWE-79 · XSS
Published May 29, 2026
Last update May 29, 2026

CVSS base score

5.3/10
Attack vector Adjacent
Attack complexity Low
Privileges required High
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:P/VC:H/VI:L/VA:H/SC:L/SI:N/SA:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 29, 2026 CVE published
May 29, 2026 Record updated