Account Takeover via Code Exchange Endpoint

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2025-12421 · Microsoft / collected KEV context

EUVD-2025-199833

GHSA-mp6x-97xj-9x62

GO-2025-4170

cve-program · CVE-2025-12421

• https://mattermost.com/security-updates

euvd · EUVD-2025-199833

• https://mattermost.com/security-updates

nvd · CVE-2025-12421

• https://mattermost.com/security-updates

osv · GHSA-mp6x-97xj-9x62

• https://nvd.nist.gov/vuln/detail/CVE-2025-12421
• https://github.com/mattermost/mattermost/commit/5072bbf689a46b3b97b2373f26149f5891396e6b
• https://github.com/mattermost/mattermost/commit/acda1fb5dd46a2f46c76ae67012423c760525eaa
• https://github.com/mattermost/mattermost/commit/f361e7d75a7ab9df5a2106e1ceb919b94b55e41d
• https://github.com/mattermost/mattermost/commit/feb598ed2b7ac3cb78a253b032ad7e4628b0de00
• https://github.com/mattermost/mattermost
• https://mattermost.com/security-updates

osv · GO-2025-4170

• https://github.com/advisories/GHSA-mp6x-97xj-9x62
• https://nvd.nist.gov/vuln/detail/CVE-2025-12421
• https://github.com/mattermost/mattermost/commit/5072bbf689a46b3b97b2373f26149f5891396e6b
• https://github.com/mattermost/mattermost/commit/acda1fb5dd46a2f46c76ae67012423c760525eaa
• https://github.com/mattermost/mattermost/commit/f361e7d75a7ab9df5a2106e1ceb919b94b55e41d
• https://github.com/mattermost/mattermost/commit/feb598ed2b7ac3cb78a253b032ad7e4628b0de00
• https://mattermost.com/security-updates

No related operational record is retained in the current change model.