{"id":"CVE-2023-35075","aliases":["EUVD-2023-2986","GHSA-jcgv-3pfq-j4hr"],"status":"published","title":"HTML injection via channel autocomplete","description":"Mattermost fails to use  innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though.","severity":{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00368,"percentile":0.30992,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-74"],"published":"2023-11-27T09:09:19Z","modified":"2026-10-28T02:30:41Z","fixes":[{"ecosystem":"Go","package":"github.com/mattermost/mattermost/server/v8","fixed_in":["8.1.4"],"sources":["ghsa","osv"]},{"ecosystem":"Go","package":"github.com/mattermost/mattermost-server/v6","fixed_in":["7.8.13"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/mattermost/mattermost/server/v8","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.1.4"}]}]},{"source":"ghsa","ecosystem":"Go","package":"github.com/mattermost/mattermost-server/v6","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.8.13"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/mattermost/mattermost/server/v8","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.1.4"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/mattermost/mattermost-server/v6","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"7.8.13"}]}]}],"products":[{"vendor":"mattermost","product":"mattermost"}],"references":[{"url":"https://mattermost.com/security-updates","tags":["x_transferred","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-35075","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-jcgv-3pfq-j4hr"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/35xxx/CVE-2023-35075.json","tags":["advisory"]},{"url":"https://github.com/mattermost/mattermost","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-35075","title":"HTML injection via channel autocomplete","description":"Mattermost fails to use  innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though. \n\n","status":"published","published":"2023-11-27T09:09:19.659Z","modified":"2025-06-03T14:01:04.187Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:35:33.462059Z"}],"euvd":[{"id":"EUVD-2023-2986","description":"Mattermost fails to use  innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though. \n\n","status":"published","published":"2023-11-27T09:09:19Z","modified":"2025-06-03T14:01:04Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"low"}],"updated_at":"2026-11-02T20:32:32.089886Z"}],"ghsa":[{"id":"GHSA-jcgv-3pfq-j4hr","title":"Mattermost Injection vulnerability","description":"Mattermost fails to use innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though.","status":"published","published":"2023-11-27T12:30:54Z","modified":"2023-11-28T20:50:05Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"low"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:37:22.840002Z"}],"nvd":[{"id":"CVE-2023-35075","description":"Mattermost fails to use  innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though. \n\n","status":"published","published":"2023-11-27T10:15:07.257Z","modified":"2026-06-17T06:04:23.117Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"low","assessor":"secondary"},{"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":"primary"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:08:49.393375Z"}],"osv":[{"id":"CVE-2023-35075","title":"HTML injection via channel autocomplete","description":"Mattermost fails to use  innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though. \n\n","status":"published","published":"2023-11-27T09:09:19.659Z","modified":"2026-10-28T02:30:41.424392478Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"low"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T15:44:32.116263Z"},{"id":"GHSA-jcgv-3pfq-j4hr","title":"Mattermost Injection vulnerability","description":"Mattermost fails to use innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though.","status":"published","published":"2023-11-27T12:30:54Z","modified":"2026-09-10T03:49:59.070109022Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"low"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T15:46:50.336262Z"}]}}