Cross-site scripting in Cisco Systems, Inc products - CVE-2020-26085
Published: December 14, 2020
Vulnerability identifier: #VU48947
CSH Severity: Low
CVSS v4: 2.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2020-26085
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data within message contents. A remote authenticted attacker can trick the victim to open specially crafted XMPP messages and execute arbitrary HTML and script code in user's browser in context of vulnerable website, leading to arbitraty code execution with elevated privileges.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Affected software
Cisco Jabber for Windows
Cisco Jabber for MacOS
Cisco Jabber for Android and iOS
Cisco Jabber for MacOS
Cisco Jabber for Android and iOS
How to mitigate CVE-2020-26085
Install updates from vendor's website.
Cisco Jabber for Windows - addressed in versions 12.1.4, 12.5.3, 12.6.4, 12.7.3, 12.8.4, 12.9.3
Cisco Jabber for MacOS - addressed in versions 12.8.5, 12.9.4
Cisco Jabber for Android and iOS - update to 12.9.4
Cisco Jabber for MacOS - addressed in versions 12.8.5, 12.9.4
Cisco Jabber for Android and iOS - update to 12.9.4