CVE-2019-12702: Cisco SPA100 Series Analog Telephone Adapters Reflected Cross-Site Scripting Vulnerability

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-10-16 · updated 2026-06-17
Weakness: CWE-79

Description

A vulnerability in the web-based management interface of Cisco SPA100 Series Analog Telephone Adapters (ATAs) could allow an authenticated, remote attacker to conduct cross-site scripting attacks. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of the affected software. An attacker could exploit this vulnerability by persuading a user to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

Affected products

Cisco Spa112 Firmware: before 1.4.1; 1.4.1, 1.4.1-sr1, 1.4.1-sr2, 1.4.1-sr3 — fixed in 1.4.1
Cisco SPA122 ATA with Router: before 1.4.1; 1.4.1, 1.4.1-sr1, 1.4.1-sr2, 1.4.1-sr3 — fixed in 1.4.1

How to fix

Upgrade to a fixed version: Cisco Spa112 Firmware 1.4.1; Cisco SPA122 ATA with Router 1.4.1. Check the vendor advisory for mitigations.

References

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