Vulnerability · Published May 29, 2026 · Assigned by TPLink
CVE-2026-34127Stored Cross-Site Scripting (XSS) via Configuration File Import on TP-Link's TL-SG108PE
Medium 5.3
In plain English
A medium-severity cross-site scripting in TL-SG108PE v5 from TP-Link Systems Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| TP-Link Systems Inc. | TL-SG108PE v5 | 0 – before 1.0.1 Build 260330 |
Weakness: CWE-79 · 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