{"cve":"CVE-2021-25981","nvd":{"published":"2022-01-03T07:15:06.943","modified":"2026-06-17T03:42:43.460","status":"Modified","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)","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-613"],"references":["https://github.com/debiki/talkyard/commit/b0310df019887f3464895529c773bc7d85ddcf34","https://github.com/debiki/talkyard/commit/b0712915d8a22a20b09a129924e8a29c25ae5761","https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25981","https://github.com/debiki/talkyard/commit/b0310df019887f3464895529c773bc7d85ddcf34","https://github.com/debiki/talkyard/commit/b0712915d8a22a20b09a129924e8a29c25ae5761"],"products":["talkyard:talkyard"],"source":"nvd","synced_at":"2026-10-19T21:26:33.761856376+00:00"},"epss":{"cve":"CVE-2021-25981","score":0.02545,"percentile":0.85007,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}