{"id":"CVE-2023-7113","aliases":["BIT-mattermost-2023-7113","EUVD-2023-3217","GHSA-h3gq-j7p9-x3p4","GO-2024-2446"],"status":"published","title":"Mattermost Cross-site Scripting vulnerability","description":"Mattermost version 8.1.6 and earlier fails to sanitize channel mention data in posts, which allows an attacker to inject markup in the web client.","severity":{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00296,"percentile":0.22428,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2023-12-29T12:46:13Z","modified":"2026-10-28T02:31:02Z","fixes":[{"ecosystem":"Go","package":"github.com/mattermost/mattermost/server/v8","fixed_in":["8.1.7"],"sources":["ghsa","osv"]},{"ecosystem":"Bitnami","package":"mattermost","fixed_in":["8.1.7"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/mattermost/mattermost/server/v8","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.1.7"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"mattermost","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.1.7"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/mattermost/mattermost/server/v8","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.1.7"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/mattermost/mattermost-server","ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/mattermost/mattermost-server/v5","ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/mattermost/mattermost-server/v6","ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/mattermost/mattermost/server/v8","ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}]}],"products":[{"vendor":"mattermost","product":"mattermost"},{"vendor":"mattermost","product":"mattermost_server"}],"references":[{"url":"https://mattermost.com/security-updates","tags":["x_transferred","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-7113","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-h3gq-j7p9-x3p4","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/7xxx/CVE-2023-7113.json","tags":["advisory"]},{"url":"https://github.com/mattermost/mattermost","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-7113","description":"Mattermost version 8.1.6 and earlier fails to sanitize channel mention data in posts, which allows an attacker to inject markup in the web client.\n\n","status":"published","published":"2023-12-29T12:46:13.932Z","modified":"2024-08-02T08:50:08.283Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:35:33.794347Z"}],"euvd":[{"id":"EUVD-2023-3217","description":"Mattermost version 8.1.6 and earlier fails to sanitize channel mention data in posts, which allows an attacker to inject markup in the web client.\n\n","status":"published","published":"2023-12-29T12:46:13Z","modified":"2024-08-02T08:50:08Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"low"}],"updated_at":"2026-11-03T03:50:09.688494Z"}],"ghsa":[{"id":"GHSA-h3gq-j7p9-x3p4","title":"Mattermost Cross-site Scripting vulnerability","description":"Mattermost version 8.1.6 and earlier fails to sanitize channel mention data in posts, which allows an attacker to inject markup in the web client.\n\n","status":"published","published":"2023-12-29T15:30:36Z","modified":"2024-08-07T05:01:43Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low"},{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"low"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:37:58.427757Z"}],"nvd":[{"id":"CVE-2023-7113","description":"Mattermost version 8.1.6 and earlier fails to sanitize channel mention data in posts, which allows an attacker to inject markup in the web client.\n\n","status":"published","published":"2023-12-29T13:15:11.93Z","modified":"2026-06-17T06:52:05.683Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"low","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:08:59.830468Z"}],"osv":[{"id":"CVE-2023-7113","description":"Mattermost version 8.1.6 and earlier fails to sanitize channel mention data in posts, which allows an attacker to inject markup in the web client.\n\n","status":"published","published":"2023-12-29T12:46:13.932Z","modified":"2026-10-28T02:31:02.286289541Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"low"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:44:37.180532Z"},{"id":"GHSA-h3gq-j7p9-x3p4","title":"Mattermost Cross-site Scripting vulnerability","description":"Mattermost version 8.1.6 and earlier fails to sanitize channel mention data in posts, which allows an attacker to inject markup in the web client.\n\n","status":"published","published":"2023-12-29T15:30:36Z","modified":"2026-09-10T03:50:04.38062167Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"low"},{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"low"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:48.546324Z"},{"id":"BIT-mattermost-2023-7113","description":"Mattermost version 8.1.6 and earlier fails to sanitize channel mention data in posts, which allows an attacker to inject markup in the web client.","status":"published","published":"2024-03-06T10:56:23.176Z","modified":"2025-04-03T14:40:37.652Z","updated_at":"2026-11-02T15:28:33.072289Z"},{"id":"GO-2024-2446","title":"Mattermost Cross-site Scripting vulnerability in github.com/mattermost/mattermost-server","description":"Mattermost Cross-site Scripting vulnerability in github.com/mattermost/mattermost-server.\n\nNOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.\n\n(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)\n\nThe additional affected modules and versions are: github.com/mattermost/mattermost/server/v8 before v8.1.7.","status":"published","published":"2024-06-28T15:28:53Z","modified":"2026-02-04T03:03:07.848736Z","updated_at":"2026-11-02T15:47:01.185262Z"}]}}