{"id":"CVE-2020-26067","aliases":["EUVD-2020-18697","GHSA-xhwg-j3rh-2ffw"],"status":"published","title":"Cisco Webex Teams Web Interface Cross-Site Scripting Vulnerability","description":"A vulnerability in the web-based interface of Cisco\u0026nbsp;Webex Teams could allow an authenticated, remote attacker to conduct cross-site scripting attacks.\r\nThe vulnerability is due to improper validation of usernames. An attacker could exploit this vulnerability by creating an account that contains malicious HTML or script content and joining a space using the malicious account name. A successful exploit could allow the attacker to conduct cross-site scripting attacks and potentially gain access to sensitive browser-based information.Cisco\u0026nbsp;has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/RL:X/RC:X/E:X","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00829,"percentile":0.57788,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-80"],"published":"2024-11-18T16:10:24Z","modified":"2026-06-17T03:07:32Z","products":[{"vendor":"cisco","product":"cisco webex teams"},{"vendor":"cisco","product":"webex_teams"}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-teams-xss-zLW9tD3","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-26067"},{"url":"https://github.com/advisories/GHSA-xhwg-j3rh-2ffw"}],"sources":{"cve":[{"id":"CVE-2020-26067","title":"Cisco Webex Teams Web Interface Cross-Site Scripting Vulnerability","description":"A vulnerability in the web-based interface of Cisco\u0026nbsp;Webex Teams could allow an authenticated, remote attacker to conduct cross-site scripting attacks.\r\nThe vulnerability is due to improper validation of usernames. An attacker could exploit this vulnerability by creating an account that contains malicious HTML or script content and joining a space using the malicious account name. A successful exploit could allow the attacker to conduct cross-site scripting attacks and potentially gain access to sensitive browser-based information.Cisco\u0026nbsp;has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.","status":"published","published":"2024-11-18T16:10:24.951Z","modified":"2024-11-26T14:41:03.582Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/RL:X/RC:X/E:X","level":"medium","assessor":"cna"}],"cwes":["CWE-80"],"updated_at":"2026-11-02T14:35:45.763329Z"}],"euvd":[{"id":"EUVD-2020-18697","description":"A vulnerability in the web-based interface of Cisco\u0026nbsp;Webex Teams could allow an authenticated, remote attacker to conduct cross-site scripting attacks.\r\nThe vulnerability is due to improper validation of usernames. An attacker could exploit this vulnerability by creating an account that contains malicious HTML or script content and joining a space using the malicious account name. A successful exploit could allow the attacker to conduct cross-site scripting attacks and potentially gain access to sensitive browser-based information.Cisco\u0026nbsp;has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.","status":"published","published":"2024-11-18T16:10:24Z","modified":"2024-11-26T14:41:03Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/RL:X/RC:X/E:X","level":"medium"}],"updated_at":"2026-11-03T00:04:47.599292Z"}],"ghsa":[{"id":"GHSA-xhwg-j3rh-2ffw","title":"A vulnerability in the web-based interface of Cisco\u0026nbsp;Webex Teams could allow an authenticated...","description":"A vulnerability in the web-based interface of Cisco\u0026nbsp;Webex Teams could allow an authenticated, remote attacker to conduct cross-site scripting attacks.\nThe vulnerability is due to improper validation of usernames. An attacker could exploit this vulnerability by creating an account that contains malicious HTML or script content and joining a space using the malicious account name. A successful exploit could allow the attacker to conduct cross-site scripting attacks and potentially gain access to sensitive browser-based information.Cisco\u0026nbsp;has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.","status":"published","published":"2024-11-18T18:30:59Z","modified":"2024-11-18T18:31:06Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-80"],"updated_at":"2026-11-02T14:58:52.476096Z"}],"nvd":[{"id":"CVE-2020-26067","description":"A vulnerability in the web-based interface of Cisco\u0026nbsp;Webex Teams could allow an authenticated, remote attacker to conduct cross-site scripting attacks.\r\nThe vulnerability is due to improper validation of usernames. An attacker could exploit this vulnerability by creating an account that contains malicious HTML or script content and joining a space using the malicious account name. A successful exploit could allow the attacker to conduct cross-site scripting attacks and potentially gain access to sensitive browser-based information.Cisco\u0026nbsp;has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.","status":"published","published":"2024-11-18T17:15:09.757Z","modified":"2026-06-17T03:07:32.58Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-80"],"updated_at":"2026-11-02T14:06:48.591569Z"}]}}