{"cve":"CVE-2021-21352","nvd":{"published":"2021-03-03T01:15:13.427","modified":"2026-06-17T03:35:22.370","status":"Modified","description":"Anuko Time Tracker is an open source, web-based time tracking application written in PHP. In TimeTracker before version 1.19.24.5415 tokens used in password reset feature in Time Tracker are based on system time and, therefore, are predictable. This opens a window for brute force attacks to guess user tokens and, once successful, change user passwords, including that of a system administrator. This vulnerability is pathced in version 1.19.24.5415 (started to use more secure tokens) with an additional improvement in 1.19.24.5416 (limited an available window for brute force token guessing).","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:N","score":9.1},"cwes":["CWE-330"],"references":["https://github.com/anuko/timetracker/commit/40f3d9345adc20e6f28eb9f59e2489aff87fecf5","https://github.com/anuko/timetracker/security/advisories/GHSA-43c9-rx4h-4gqq","https://www.anuko.com/time-tracker/index.htm","https://github.com/anuko/timetracker/commit/40f3d9345adc20e6f28eb9f59e2489aff87fecf5","https://github.com/anuko/timetracker/security/advisories/GHSA-43c9-rx4h-4gqq"],"products":["anuko:time_tracker"],"source":"nvd","synced_at":"2026-10-19T21:15:50.279857260+00:00"},"epss":{"cve":"CVE-2021-21352","score":0.01545,"percentile":0.74984,"date":"2026-10-31"},"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."]}