Vulnerability record · CVE-2023-34354 · published 11 October 2023

CVE-2023-34354: Peplink surf soho firmware cross-site scripting vulnerability

Peplink · Surf Soho Firmware

A stored cross-site scripting (XSS) vulnerability exists in the upload_brand.cgi functionality of peplink Surf SOHO HW1 v6.3.5 (in QEMU). A specially crafted HTTP request can lead to execution of arbitrary javascript in another user's browser. An attacker can make an authenticated HTTP request to trigger this vulnerability.

5.4 CVSS 3.1 Medium EPSS 0.81% · top 44.8% CWE-80 · CWE-80CWE-79 · Cross-site scripting

5.4CVSS 3.1 base score

0.81%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

3References, 2 tagged exploit

17 Jun 2026Last modified by NVD

Description

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Surf Soho Firmware Peplink

References

Link	Tags
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1781	ExploitProductThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1781	ExploitProductThird Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1781

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-34354), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.