{"id":"CVE-2025-62690","aliases":["GHSA-q66g-q98c-q454","GO-2025-4248"],"url":"https://o3.security/vulnerability/CVE-2025-62690","summary":"Open redirect in error page when link opened in new tab","details":"Mattermost versions 10.11.x <= 10.11.4 fail to validate redirect URLs on the /error page, which allows an attacker to redirect a victim to a malicious site via a crafted link opened in a new tab.","published":"2025-12-17T12:19:17.658Z","modified":"2026-08-12T03:51:22.916516783Z","cvss":{"score":3.1,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost/server/v8","fixedVersion":"8.0.0-20251016131338-dad6bd7a1509"},{"ecosystem":"Go","name":"github.com/mattermost/mattermost","fixedVersion":"10.11.5-0.20251016131338-dad6bd7a1509"},{"ecosystem":"Go","name":"github.com/mattermost/mattermost","fixedVersion":"11.1.0"}],"fix":{"url":"https://github.com/mattermost/mattermost/commit/dad6bd7a1509054580a0898bbc0e026aac3b30cb","label":"mattermost/mattermost@dad6bd7"},"references":[{"type":"WEB","url":"https://mattermost.com/security-updates"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/62xxx/CVE-2025-62690.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-62690"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/dad6bd7a1509054580a0898bbc0e026aac3b30cb"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:22.916516783Z"}}