CVE-2018-0276

A vulnerability in Cisco WebEx Connect IM could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of an affected system. The vulnerability is due to insufficient input validation of some parameters that are passed to the web server of the affected system. An attacker could exploit this vulnerability by convincing a user to follow a malicious link or by intercepting a user request and injecting malicious code into the request. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected web interface or allow the attacker to access sensitive browser-based information. Cisco Bug IDs: CSCvi07812.

• CWE-79
• CWE-79

• http://www.securityfocus.com/bid/103921Third Party Advisory, VDB Entry
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-webconVendor Advisory
• http://www.securityfocus.com/bid/103921Third Party Advisory, VDB Entry
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-webconVendor Advisory

Published

Apr 19, 2018

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-2018-0270A vulnerability in the web-based management interface of Cis…
• CVE-2018-0271A vulnerability in the API gateway of the Cisco Digital Netw…
• CVE-2018-0272A vulnerability in the Secure Sockets Layer (SSL) Engine of …
• CVE-2018-0273A vulnerability in the IPsec Manager of Cisco StarOS for Cis…
• CVE-2018-0274A vulnerability in the CLI parser of Cisco Network Services …8.8
• CVE-2018-0275A vulnerability in the support tunnel feature of Cisco Ident…
• CVE-2018-0277A vulnerability in the Extensible Authentication Protocol-Tr…
• CVE-2018-0278A vulnerability in the management console of Cisco Firepower…6.5
• CVE-2018-0279A vulnerability in the Secure Copy Protocol (SCP) server of …8.8
• CVE-2018-0280A vulnerability in the Real-Time Transport Protocol (RTP) bi…
• CVE-2018-0281A vulnerability in the detection engine of Cisco Firepower S…
• CVE-2018-0282A vulnerability in the TCP socket code of Cisco IOS and IOS …6.8