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Vulnerability record · CVE-2018-17533 · published 15 October 2018

CVE-2018-17533: Teltonika rut900 firmware cross-site scripting vulnerability

TTeltonika · Rut900 Firmware

Teltonika RUT9XX routers with firmware before 00.05.01.1 are prone to cross-site scripting vulnerabilities in hotspotlogin.cgi due to insufficient user input sanitization.

6.1 CVSS 3.0 Medium EPSS 2.0% · top 20.5% CWE-79 · Cross-site scripting
6.1CVSS 3.0 base score, v2 4.3
2.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
6References, 6 tagged exploit
17 Jun 2026Last modified by NVD

Description

Teltonika RUT9XX routers with firmware before 00.05.01.1 are prone to cross-site scripting vulnerabilities in hotspotlogin.cgi due to insufficient user input sanitization.

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

Affected products

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

References

LinkTags
http://packetstormsecurity.com/files/149781/Teltonika-RUT9XX-Reflected-Cross-Site-Scripting.html ExploitThird Party AdvisoryVDB Entry
http://seclists.org/fulldisclosure/2018/Oct/29 ExploitMailing ListThird Party Advisory
https://github.com/sbaresearch/advisories/tree/public/2018/SBA-ADV-20180410-01_Teltonika_Cross_Site_Scripting ExploitThird Party Advisory
http://packetstormsecurity.com/files/149781/Teltonika-RUT9XX-Reflected-Cross-Site-Scripting.html ExploitThird Party AdvisoryVDB Entry
http://seclists.org/fulldisclosure/2018/Oct/29 ExploitMailing ListThird Party Advisory
https://github.com/sbaresearch/advisories/tree/public/2018/SBA-ADV-20180410-01_Teltonika_Cross_Site_Scripting ExploitThird Party Advisory

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Related vulnerabilities

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

9.8CVE-2018-19879Teltonika rut950 firmware improper restriction of authentication attempts vulnerabilityAn issue was discovered in /cgi-bin/luci on Teltonika RTU9XX (e.g., RUT950) R_31.04.89 before R_00.05.00.5 devices. The authentication functionality …EPSS 1.3%9.8CVE-2018-17532Teltonika RUT9XX routers unauthenticated OS command injectionTeltonika RUT9XX routers running firmware before 00.04.233 fail to sanitize user input in autologin.cgi and hotspotlogin.cgi, allowing OS command inj…EPSS 71%analysed9.8CVE-2017-8116Teltonika rut900 firmware os command injection vulnerabilityThe management interface for the Teltonika RUT9XX routers (aka LuCI) with firmware 00.03.265 and earlier allows remote attackers to execute arbitrary…EPSS 4.5%6.8CVE-2018-17534Teltonika rut900 firmware improper authentication vulnerabilityTeltonika RUT9XX routers with firmware before 00.04.233 provide a root terminal on a serial interface without proper access control. This allows atta…EPSS 0.72%6.5CVE-2018-19878Teltonika rut950 firmware use after free vulnerabilityAn issue was discovered on Teltonika RTU950 R_31.04.89 devices. The application allows a user to login without limitation. For every successful login…EPSS 1.2%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%analysed6.1CVE-2025-66376Zimbra Collaboration Classic UI stored XSS via CSS @import in emailZimbra Collaboration Suite 10 before 10.0.18 and 10.1 before 10.1.13 allows stored cross-site scripting in the Classic UI through CSS @import directi…KEVEPSS 20%analysed

Source: NIST National Vulnerability Database (record CVE-2018-17533), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.