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Vulnerability record · CVE-2017-8838 · published 5 June 2017

CVE-2017-8838: Peplink b305hw2 firmware cross-site scripting vulnerability

Peplink · B305hw2 Firmware

XSS via syncid 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 cgi-bin/HASync/hasync.cgi.

6.1 CVSS 3.0 Medium EPSS 1.8% · top 22.5% 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 syncid 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 cgi-bin/HASync/hasync.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/ PatchThird 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/ PatchThird 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-2017-8839Peplink b305hw2 firmware cross-site scripting vulnerabilityXSS via orig_url exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before fw-b305hw2_380hw6_580hw2_710hw3_1350hw2_25…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-2017-8838), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.