{"id":"CVE-2021-1221","state":"PUBLISHED","title":"Cisco Webex Meetings and Cisco Webex Meetings Server Software Hyperlink Injection Vulnerability","description":"A vulnerability in the user interface of Cisco Webex Meetings and Cisco Webex Meetings Server Software could allow an authenticated, remote attacker to inject a hyperlink into a meeting invitation email. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by entering a URL into a field in the user interface. A successful exploit could allow the attacker to generate a Webex Meetings invitation email that contains a link to a destination of their choosing. Because this email is sent from a trusted source, the recipient may be more likely to click the link.","publishedAt":"2021-02-04T16:35:44.855Z","updatedAt":"2024-11-08T23:53:20.479Z","severity":{"score":4.1,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N","source":"cisco"},"assigner":"cisco","products":["Cisco Cisco WebEx Meetings Server"],"affected":[{"vendor":"Cisco","product":"Cisco WebEx Meetings Server","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wbx-linkinj-WWZpVqu9"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T19:47:52.848Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/1xxx/CVE-2021-1221.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-1221","state":"PUBLISHED","datePublished":"2021-02-04T16:35:44.855Z","dateUpdated":"2024-11-08T23:53:20.479Z","assignerShortName":"cisco","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateReserved":"2020-11-13T00:00:00.000Z"},"containers":{"cna":{"title":"Cisco Webex Meetings and Cisco Webex Meetings Server Software Hyperlink Injection Vulnerability","descriptions":[{"lang":"en","value":"A vulnerability in the user interface of Cisco Webex Meetings and Cisco Webex Meetings Server Software could allow an authenticated, remote attacker to inject a hyperlink into a meeting invitation email. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by entering a URL into a field in the user interface. A successful exploit could allow the attacker to generate a Webex Meetings invitation email that contains a link to a destination of their choosing. Because this email is sent from a trusted source, the recipient may be more likely to click the link."}],"affected":[{"vendor":"Cisco","product":"Cisco WebEx Meetings Server","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wbx-linkinj-WWZpVqu9","name":"20210203 Cisco Webex Meetings and Cisco Webex Meetings Server Software Hyperlink Injection Vulnerability","tags":["vendor-advisory","x_refsource_CISCO"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.1,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","description":"CWE-20","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"cisco","dateUpdated":"2021-02-04T16:35:44.000Z","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633"},"datePublic":"2021-02-03T00:00:00.000Z","exploits":[{"lang":"en","value":"The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}],"source":{"advisory":"cisco-sa-wbx-linkinj-WWZpVqu9","defect":[["CSCvw13888","CSCvw13891"]],"discovery":"INTERNAL"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"psirt@cisco.com","DATE_PUBLIC":"2021-02-03T16:00:00","ID":"CVE-2021-1221","STATE":"PUBLIC","TITLE":"Cisco Webex Meetings and Cisco Webex Meetings Server Software Hyperlink Injection Vulnerability"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Cisco WebEx Meetings Server","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"Cisco"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"A vulnerability in the user interface of Cisco Webex Meetings and Cisco Webex Meetings Server Software could allow an authenticated, remote attacker to inject a hyperlink into a meeting invitation email. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by entering a URL into a field in the user interface. A successful exploit could allow the attacker to generate a Webex Meetings invitation email that contains a link to a destination of their choosing. Because this email is sent from a trusted source, the recipient may be more likely to click the link."}]},"exploit":[{"lang":"en","value":"The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}],"impact":{"cvss":{"baseScore":"4.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N","version":"3.0"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-20"}]}]},"references":{"reference_data":[{"name":"20210203 Cisco Webex Meetings and Cisco Webex Meetings Server Software Hyperlink Injection Vulnerability","refsource":"CISCO","url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wbx-linkinj-WWZpVqu9"}]},"source":{"advisory":"cisco-sa-wbx-linkinj-WWZpVqu9","defect":[["CSCvw13888","CSCvw13891"]],"discovery":"INTERNAL"}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wbx-linkinj-WWZpVqu9","name":"20210203 Cisco Webex Meetings and Cisco Webex Meetings Server Software Hyperlink Injection Vulnerability","tags":["vendor-advisory","x_refsource_CISCO","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T16:02:56.140Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-11-08T20:49:38.706484Z","id":"CVE-2021-1221","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-11-08T23:53:20.479Z"}}]}}}