CVE-2021-34789

A vulnerability in the web-based management interface of Cisco Tetration could allow an authenticated, remote attacker to perform a stored cross-site scripting (XSS) attack on an affected system. This vulnerability exists because the web-based management interface does not sufficiently validate user-supplied input. An attacker could exploit this vulnerability by injecting malicious code into specific pages of the interface. 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. To exploit this vulnerability, the attacker would need valid administrative credentials.

• CWE-79
• CWE-79

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sec-work-xss-t6SYtu8QVendor Advisory
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sec-work-xss-t6SYtu8QVendor Advisory

Published

Oct 21, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2021-34783A vulnerability in the software-based SSL/TLS message handle…7.5
• CVE-2021-34784A vulnerability in the web-based management interface of Cis…5.4
• CVE-2021-34785Multiple vulnerabilities in Cisco BroadWorks CommPilot Appli…7.2
• CVE-2021-34786Multiple vulnerabilities in Cisco BroadWorks CommPilot Appli…4.9
• CVE-2021-34787A vulnerability in the identity-based firewall (IDFW) rule p…5.3
• CVE-2021-34788A vulnerability in the shared library loading mechanism of C…7
• CVE-2021-3479There's a flaw in OpenEXR's Scanline API functionality in ve…5.5
• CVE-2021-34790Multiple vulnerabilities in the Application Level Gateway (A…5.3
• CVE-2021-34791Multiple vulnerabilities in the Application Level Gateway (A…5.3
• CVE-2021-34792A vulnerability in the memory management of Cisco Adaptive S…7.5
• CVE-2021-34793A vulnerability in the TCP Normalizer of Cisco Adaptive Secu…8.6
• CVE-2021-34794A vulnerability in the Simple Network Management Protocol ve…5.3