CVE-2026-34127 — MEDIUM (4.8)

Vulnerability 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.

CVSS Score

4.8

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Tp-Link	Tl-Sg108Pe Firmware	1.0.1
Tp-Link	Tl-Sg108Pe	5.0

Related Weaknesses (CWE)

CWE-79

References

FAQ

What is CVE-2026-34127?

CVE-2026-34127 is a vulnerability with a CVSS score of 4.8 (MEDIUM). 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...

How severe is CVE-2026-34127?

CVE-2026-34127 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-34127?

Check the references section above for vendor advisories and patch information. Affected products include: Tp-Link Tl-Sg108Pe Firmware, Tp-Link Tl-Sg108Pe.