{"id":"CVE-2021-25981","aliases":["EUVD-2021-12808","GHSA-4jw2-24wg-vcf7"],"status":"published","title":"Talkyard - Insufficient Session Expiration","description":"In Talkyard, regular versions v0.2021.20 through v0.2021.33 and dev versions v0.2021.20 through v0.2021.34, are vulnerable to Insufficient Session Expiration. This may allow an attacker to reuse the admin’s still-valid session token even when logged-out, to gain admin privileges, given the attacker is able to obtain that token (via other, hypothetical attacks)","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.02545,"percentile":0.85233,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-613"],"published":"2022-01-03T06:35:10Z","modified":"2026-10-20T10:53:40Z","products":[{"vendor":"debiki","product":"talkyard"},{"vendor":"talkyard","product":"talkyard"}],"references":[{"url":"https://github.com/debiki/talkyard/commit/b0310df019887f3464895529c773bc7d85ddcf34","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/debiki/talkyard/commit/b0712915d8a22a20b09a129924e8a29c25ae5761","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25981","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","VDB Entry","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-25981"},{"url":"https://github.com/advisories/GHSA-4jw2-24wg-vcf7"}],"sources":{"cve":[{"id":"CVE-2021-25981","title":"Talkyard - Insufficient Session Expiration","description":"In Talkyard, regular versions v0.2021.20 through v0.2021.33 and dev versions v0.2021.20 through v0.2021.34, are vulnerable to Insufficient Session Expiration. This may allow an attacker to reuse the admin’s still-valid session token even when logged-out, to gain admin privileges, given the attacker is able to obtain that token (via other, hypothetical attacks)","status":"published","published":"2022-01-03T06:35:10Z","modified":"2024-08-03T20:19:19.39Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-613"],"updated_at":"2026-11-02T14:32:59.802172Z"}],"euvd":[{"id":"EUVD-2021-12808","description":"In Talkyard, regular versions v0.2021.20 through v0.2021.33 and dev versions v0.2021.20 through v0.2021.34, are vulnerable to Insufficient Session Expiration. This may allow an attacker to reuse the admin’s still-valid session token even when logged-out, to gain admin privileges, given the attacker is able to obtain that token (via other, hypothetical attacks)","status":"published","published":"2022-01-03T06:35:10Z","modified":"2024-08-03T20:19:19Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T03:24:51.962182Z"}],"ghsa":[{"id":"GHSA-4jw2-24wg-vcf7","title":"In Talkyard, regular versions v0.2021.20 through v0.2021.33 and dev versions v0.2021.20 through...","description":"In Talkyard, regular versions v0.2021.20 through v0.2021.33 and dev versions v0.2021.20 through v0.2021.34, are vulnerable to Insufficient Session Expiration. This may allow an attacker to reuse the admin’s still-valid session token even when logged-out, to gain admin privileges, given the attacker is able to obtain that token (via other, hypothetical attacks)","status":"published","published":"2022-01-04T00:01:10Z","modified":"2023-02-03T05:04:05Z","cwes":["CWE-613"],"updated_at":"2026-11-02T14:53:29.32278Z"}],"nvd":[{"id":"CVE-2021-25981","description":"In Talkyard, regular versions v0.2021.20 through v0.2021.33 and dev versions v0.2021.20 through v0.2021.34, are vulnerable to Insufficient Session Expiration. This may allow an attacker to reuse the admin’s still-valid session token even when logged-out, to gain admin privileges, given the attacker is able to obtain that token (via other, hypothetical attacks)","status":"published","published":"2022-01-03T07:15:06.943Z","modified":"2026-06-17T03:42:43.46Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-613"],"updated_at":"2026-11-02T14:07:02.977492Z"}],"osv":[{"id":"CVE-2021-25981","description":"In Talkyard, regular versions v0.2021.20 through v0.2021.33 and dev versions v0.2021.20 through v0.2021.34, are vulnerable to Insufficient Session Expiration. This may allow an attacker to reuse the admin’s still-valid session token even when logged-out, to gain admin privileges, given the attacker is able to obtain that token (via other, hypothetical attacks)","status":"published","published":"2022-01-03T07:15:06.943Z","modified":"2026-10-20T10:53:40.756145478Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:18.778776Z"}]}}