{"id":"CVE-2025-25306","aliases":["EUVD-2025-7668","GHSA-6w2c-vf6f-xf26"],"status":"published","title":"Misskey's Incomplete Patch of CVE-2024-52591 Leads to Forgery of Federated Notes","description":"Misskey is an open source, federated social media platform. The patch for CVE-2024-52591 did not sufficiently validate the relation between the `id` and `url` fields of ActivityPub objects. An attacker can forge an object where they claim authority in the `url` field even if the specific ActivityPub object type require authority in the `id` field. Version 2025.2.1 addresses the issue.","severity":{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0018,"percentile":0.07617,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1025","CWE-346","CWE-441"],"published":"2025-03-10T18:13:45Z","modified":"2026-10-28T02:30:51Z","products":[{"vendor":"misskey","product":"misskey"},{"vendor":"misskey-dev","product":"misskey"}],"references":[{"url":"https://github.com/misskey-dev/misskey/security/advisories/GHSA-6w2c-vf6f-xf26","tags":["x_refsource_CONFIRM","Third Party Advisory","advisory"]},{"url":"https://github.com/misskey-dev/misskey/releases/tag/2025.2.1","tags":["x_refsource_MISC","Patch","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/25xxx/CVE-2025-25306.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-25306","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2025-25306","title":"Misskey's Incomplete Patch of CVE-2024-52591 Leads to Forgery of Federated Notes","description":"Misskey is an open source, federated social media platform. The patch for CVE-2024-52591 did not sufficiently validate the relation between the `id` and `url` fields of ActivityPub objects. An attacker can forge an object where they claim authority in the `url` field even if the specific ActivityPub object type require authority in the `id` field. Version 2025.2.1 addresses the issue.","status":"published","published":"2025-03-10T18:13:45.515Z","modified":"2025-03-12T19:49:47.787Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N","level":"critical","assessor":"cna"}],"cwes":["CWE-346","CWE-441","CWE-1025"],"updated_at":"2026-11-02T14:32:31.971896Z"}],"euvd":[{"id":"EUVD-2025-7668","description":"Misskey is an open source, federated social media platform. The patch for CVE-2024-52591 did not sufficiently validate the relation between the `id` and `url` fields of ActivityPub objects. An attacker can forge an object where they claim authority in the `url` field even if the specific ActivityPub object type require authority in the `id` field. Version 2025.2.1 addresses the issue.","status":"published","published":"2025-03-10T18:13:45Z","modified":"2025-03-12T19:49:47Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N","level":"critical"}],"updated_at":"2026-11-02T20:53:05.95539Z"}],"nvd":[{"id":"CVE-2025-25306","description":"Misskey is an open source, federated social media platform. The patch for CVE-2024-52591 did not sufficiently validate the relation between the `id` and `url` fields of ActivityPub objects. An attacker can forge an object where they claim authority in the `url` field even if the specific ActivityPub object type require authority in the `id` field. Version 2025.2.1 addresses the issue.","status":"published","published":"2025-03-10T19:15:40.23Z","modified":"2026-06-17T09:00:39.43Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N","level":"critical","assessor":"primary"}],"cwes":["CWE-346","CWE-441","CWE-1025"],"updated_at":"2026-11-02T14:10:53.101324Z"}],"osv":[{"id":"CVE-2025-25306","title":"Misskey's Incomplete Patch of CVE-2024-52591 Leads to Forgery of Federated Notes","description":"Misskey is an open source, federated social media platform. The patch for CVE-2024-52591 did not sufficiently validate the relation between the `id` and `url` fields of ActivityPub objects. An attacker can forge an object where they claim authority in the `url` field even if the specific ActivityPub object type require authority in the `id` field. Version 2025.2.1 addresses the issue.","status":"published","published":"2025-03-10T18:13:45.515Z","modified":"2026-10-28T02:30:51.959720702Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N","level":"critical"}],"cwes":["CWE-1025","CWE-346","CWE-441"],"updated_at":"2026-11-02T15:44:47.386092Z"}]}}