{"id":"CVE-2022-21649","state":"PUBLISHED","title":"Stored XSS via attribute in convos","description":"Convos is an open source multi-user chat that runs in a web browser. Characters starting with \"https://\" in the chat window create an <a> tag. Stored XSS vulnerability using onfocus and autofocus occurs because escaping exists for \"<\" or \">\" but escaping for double quotes does not exist. Through this vulnerability, an attacker is capable to execute malicious scripts. Users are advised to update as soon as possible.","publishedAt":"2022-01-04T20:40:20.000Z","updatedAt":"2025-04-22T18:34:30.665Z","severity":{"score":7.6,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["convos-chat convos"],"affected":[{"vendor":"convos-chat","product":"convos","versions":[{"version":">= 6.49, < 6.52","status":"affected"}]}],"references":["https://blog.pocas.kr/2021/12/30/2021-12-30-s-xss-convos-chat/#Second-vulnerability","https://github.com/convos-chat/convos/commit/86b2193de375005ba71d9dd53843562c6ac1847c","https://www.huntr.dev/bounties/4532a0ac-4e7c-4fcf-9fe3-630e132325c0/","https://github.com/convos-chat/convos/security/advisories/GHSA-xmpj-xwm3-vww7"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T19:49:35.025Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/21xxx/CVE-2022-21649.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-21649","state":"PUBLISHED","datePublished":"2022-01-04T20:40:20.000Z","dateUpdated":"2025-04-22T18:34:30.665Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2021-11-16T00:00:00.000Z"},"containers":{"cna":{"title":"Stored XSS via attribute in convos","descriptions":[{"lang":"en","value":"Convos is an open source multi-user chat that runs in a web browser. Characters starting with \"https://\" in the chat window create an <a> tag. Stored XSS vulnerability using onfocus and autofocus occurs because escaping exists for \"<\" or \">\" but escaping for double quotes does not exist. Through this vulnerability, an attacker is capable to execute malicious scripts. Users are advised to update as soon as possible."}],"affected":[{"vendor":"convos-chat","product":"convos","versions":[{"version":">= 6.49, < 6.52","status":"affected"}]}],"references":[{"url":"https://blog.pocas.kr/2021/12/30/2021-12-30-s-xss-convos-chat/#Second-vulnerability","tags":["x_refsource_MISC"]},{"url":"https://github.com/convos-chat/convos/commit/86b2193de375005ba71d9dd53843562c6ac1847c","tags":["x_refsource_MISC"]},{"url":"https://www.huntr.dev/bounties/4532a0ac-4e7c-4fcf-9fe3-630e132325c0/","tags":["x_refsource_MISC"]},{"url":"https://github.com/convos-chat/convos/security/advisories/GHSA-xmpj-xwm3-vww7","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.6,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","dateUpdated":"2022-01-04T20:40:20.000Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa"},"source":{"advisory":"GHSA-xmpj-xwm3-vww7","discovery":"UNKNOWN"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security-advisories@github.com","ID":"CVE-2022-21649","STATE":"PUBLIC","TITLE":"Stored XSS via attribute in convos"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"convos","version":{"version_data":[{"version_value":">= 6.49, < 6.52"}]}}]},"vendor_name":"convos-chat"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Convos is an open source multi-user chat that runs in a web browser. Characters starting with \"https://\" in the chat window create an <a> tag. Stored XSS vulnerability using onfocus and autofocus occurs because escaping exists for \"<\" or \">\" but escaping for double quotes does not exist. Through this vulnerability, an attacker is capable to execute malicious scripts. Users are advised to update as soon as possible."}]},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.6,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}]},"references":{"reference_data":[{"name":"https://blog.pocas.kr/2021/12/30/2021-12-30-s-xss-convos-chat/#Second-vulnerability","refsource":"MISC","url":"https://blog.pocas.kr/2021/12/30/2021-12-30-s-xss-convos-chat/#Second-vulnerability"},{"name":"https://github.com/convos-chat/convos/commit/86b2193de375005ba71d9dd53843562c6ac1847c","refsource":"MISC","url":"https://github.com/convos-chat/convos/commit/86b2193de375005ba71d9dd53843562c6ac1847c"},{"name":"https://www.huntr.dev/bounties/4532a0ac-4e7c-4fcf-9fe3-630e132325c0/","refsource":"MISC","url":"https://www.huntr.dev/bounties/4532a0ac-4e7c-4fcf-9fe3-630e132325c0/"},{"name":"https://github.com/convos-chat/convos/security/advisories/GHSA-xmpj-xwm3-vww7","refsource":"CONFIRM","url":"https://github.com/convos-chat/convos/security/advisories/GHSA-xmpj-xwm3-vww7"}]},"source":{"advisory":"GHSA-xmpj-xwm3-vww7","discovery":"UNKNOWN"}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://blog.pocas.kr/2021/12/30/2021-12-30-s-xss-convos-chat/#Second-vulnerability","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://github.com/convos-chat/convos/commit/86b2193de375005ba71d9dd53843562c6ac1847c","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://www.huntr.dev/bounties/4532a0ac-4e7c-4fcf-9fe3-630e132325c0/","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://github.com/convos-chat/convos/security/advisories/GHSA-xmpj-xwm3-vww7","tags":["x_refsource_CONFIRM","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T02:46:39.529Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-04-22T15:52:23.471657Z","id":"CVE-2022-21649","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-22T18:34:30.665Z"}}]}}}