{"id":"CVE-2025-59480","aliases":["EUVD-2025-175341","GHSA-h2fg-6x82-5f24"],"status":"published","title":"Inadequate validation of SSO redirect credentials permits credential theft","description":"Mattermost Mobile Apps versions \u003c=2.32.0 fail to verify that SSO redirect tokens originate from the trusted server, which allows a malicious Mattermost instance or on-path attacker to obtain user session credentials via crafted token-in-URL responses","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00154,"percentile":0.04575,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-352"],"published":"2025-11-13T17:32:04Z","modified":"2026-10-28T02:30:44Z","products":[{"vendor":"mattermost","product":"mattermost"},{"vendor":"mattermost","product":"mattermost_mobile"}],"references":[{"url":"https://mattermost.com/security-updates","tags":["Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-59480","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-h2fg-6x82-5f24"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59480.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2025-59480","title":"Inadequate validation of SSO redirect credentials permits credential theft","description":"Mattermost Mobile Apps versions \u003c=2.32.0 fail to verify that SSO redirect tokens originate from the trusted server, which allows a malicious Mattermost instance or on-path attacker to obtain user session credentials via crafted token-in-URL responses","status":"published","published":"2025-11-13T17:32:04.772Z","modified":"2025-11-13T18:02:26.585Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:32:47.447481Z"}],"euvd":[{"id":"EUVD-2025-175341","description":"Mattermost Mobile Apps versions \u003c=2.32.0 fail to verify that SSO redirect tokens originate from the trusted server, which allows a malicious Mattermost instance or on-path attacker to obtain user session credentials via crafted token-in-URL responses","status":"published","published":"2025-11-13T17:32:04Z","modified":"2025-11-13T18:02:26Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T19:49:17.485718Z"}],"ghsa":[{"id":"GHSA-h2fg-6x82-5f24","title":"Mattermost Mobile Apps versions \u003c=2.32.0 fail to verify that SSO redirect tokens originate from...","description":"Mattermost Mobile Apps versions \u003c=2.32.0 fail to verify that SSO redirect tokens originate from the trusted server, which allows a malicious Mattermost instance or on-path attacker to obtain user session credentials via crafted token-in-URL responses","status":"published","published":"2025-11-13T18:31:05Z","modified":"2025-11-13T18:31:17Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:04:47.510067Z"}],"nvd":[{"id":"CVE-2025-59480","description":"Mattermost Mobile Apps versions \u003c=2.32.0 fail to verify that SSO redirect tokens originate from the trusted server, which allows a malicious Mattermost instance or on-path attacker to obtain user session credentials via crafted token-in-URL responses","status":"published","published":"2025-11-13T18:15:50.703Z","modified":"2026-10-19T13:10:00.11Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:11:43.650381Z"}],"osv":[{"id":"CVE-2025-59480","title":"Inadequate validation of SSO redirect credentials permits credential theft","description":"Mattermost Mobile Apps versions \u003c=2.32.0 fail to verify that SSO redirect tokens originate from the trusted server, which allows a malicious Mattermost instance or on-path attacker to obtain user session credentials via crafted token-in-URL responses","status":"published","published":"2025-11-13T17:32:04.772Z","modified":"2026-10-28T02:30:44.205203015Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:44:51.516975Z"}]}}