{"cve":"CVE-2021-21253","nvd":{"published":"2021-01-21T15:15:14.580","modified":"2026-06-17T03:35:08.080","status":"Modified","description":"OnlineVotingSystem is an open source project hosted on GitHub. OnlineVotingSystem before version 1.1.2 hashes user passwords without a salt, which is vulnerable to dictionary attacks. Therefore there is a threat of security breach in the voting system. Without a salt, it is much easier for attackers to pre-compute the hash value using dictionary attack techniques such as rainbow tables to crack passwords. This problem is fixed and published in version 1.1.2. A long randomly generated salt is added to the password hash function to better protect passwords stored in the voting system.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":["CWE-916","CWE-759"],"references":["https://github.com/dbijaya/OnlineVotingSystem/commit/0181cb0272857696c8eb3e44fcf6cb014ff90f09","https://github.com/dbijaya/OnlineVotingSystem/security/advisories/GHSA-wwg8-372v-v332","https://github.com/dbijaya/OnlineVotingSystem/commit/0181cb0272857696c8eb3e44fcf6cb014ff90f09","https://github.com/dbijaya/OnlineVotingSystem/security/advisories/GHSA-wwg8-372v-v332"],"products":["onlinevotingsystem_project:onlinevotingsystem"],"source":"nvd","synced_at":"2026-10-19T21:14:10.479542811+00:00"},"epss":{"cve":"CVE-2021-21253","score":0.00745,"percentile":0.54804,"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."]}