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Vulnerability record · CVE-2017-8839 · published 5 June 2017

CVE-2017-8839: Peplink b305hw2 firmware cross-site scripting vulnerability

Peplink · B305hw2 Firmware

XSS via orig_url exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before fw-b305hw2_380hw6_580hw2_710hw3_1350hw2_2500-7.0.1-build2093. The affected script is guest/preview.cgi.

6.1 CVSS 3.0 Medium EPSS 1.8% · top 23.0% CWE-79 · Cross-site scripting
6.1CVSS 3.0 base score, v2 4.3
1.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

XSS via orig_url exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before fw-b305hw2_380hw6_580hw2_710hw3_1350hw2_2500-7.0.1-build2093. The affected script is guest/preview.cgi.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

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

References

LinkTags
http://seclists.org/bugtraq/2017/Jun/1 Mailing ListThird Party Advisory
https://www.exploit-db.com/exploits/42130/
https://www.x41-dsec.de/lab/advisories/x41-2017-005-peplink/ Third Party Advisory
http://seclists.org/bugtraq/2017/Jun/1 Mailing ListThird Party Advisory
https://www.exploit-db.com/exploits/42130/
https://www.x41-dsec.de/lab/advisories/x41-2017-005-peplink/ Third Party Advisory

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Related vulnerabilities

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

9.8CVE-2017-8835Peplink Balance routers SQL injection via bauth cookiePeplink Balance 305, 380, 580, 710, 1350 and 2500 devices running firmware before 7.0.1-build2093 contain a SQL injection in cgi-bin/MANGA/admin.cgi …EPSS 62%analysed9.8CVE-2017-8837Peplink b305hw2 firmware insufficiently protected credentials vulnerabilityCleartext password storage exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before fw-b305hw2_380hw6_580hw2_710hw3_…EPSS 4.9%8.8CVE-2017-8836Peplink b305hw2 firmware cross-site request forgery vulnerabilityCSRF exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before fw-b305hw2_380hw6_580hw2_710hw3_1350hw2_2500-7.0.1-bui…EPSS 1.9%8.1CVE-2017-8841Peplink b305hw2 firmware path traversal vulnerabilityArbitrary file deletion exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before fw-b305hw2_380hw6_580hw2_710hw3_135…EPSS 3.7%6.1CVE-2017-8838Peplink b305hw2 firmware cross-site scripting vulnerabilityXSS via syncid exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before fw-b305hw2_380hw6_580hw2_710hw3_1350hw2_2500…EPSS 1.8%5.3CVE-2017-8840Peplink b305hw2 firmware information exposure vulnerabilityDebug information disclosure exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before fw-b305hw2_380hw6_580hw2_710hw…EPSS 3.6%6.1CVE-2026-42897Microsoft Exchange Server XSS enables spoofingMicrosoft Exchange Server and Exchange Server Subscription Edition fail to neutralize input during web page generation, a cross-site scripting flaw (…KEVEPSS 0.52%analysed6.1CVE-2025-48700Zimbra Classic UI stored XSS via crafted email HTMLZimbra Collaboration Suite Classic UI fails to properly sanitize HTML content in email messages, allowing crafted tag structures and attribute values…KEVEPSS 1.7%analysed

Source: NIST National Vulnerability Database (record CVE-2017-8839), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.