{"id":"CVE-2021-36621","aliases":["EUVD-2021-23218","GHSA-jpfx-pvpj-qwrq"],"status":"published","title":"Sourcecodester Online Covid Vaccination Scheduler System 1.0 is vulnerable to SQL Injection. The...","description":"Sourcecodester Online Covid Vaccination Scheduler System 1.0 is vulnerable to SQL Injection. The username parameter is vulnerable to time-based SQL injection. Upon successful dumping the admin password hash, an attacker can decrypt and obtain the plain-text password. Hence, the attacker could authenticate as Administrator.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.02073,"percentile":0.81622,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-89"],"published":"2021-07-29T17:11:30Z","modified":"2026-06-17T03:58:58Z","products":[{"vendor":"online_covid_vaccination_scheduler_system_project","product":"online_covid_vaccination_scheduler_system"}],"references":[{"url":"https://www.exploit-db.com/exploits/50109","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/oretnom23/CVE-nu11-18-09-2821","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/164324/Covid-Vaccination-Scheduler-System-1.0-SQL-Injection-Cross-Site-Scripting.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-36621"},{"url":"https://github.com/advisories/GHSA-jpfx-pvpj-qwrq"}],"sources":{"cve":[{"id":"CVE-2021-36621","description":"Sourcecodester Online Covid Vaccination Scheduler System 1.0 is vulnerable to SQL Injection. The username parameter is vulnerable to time-based SQL injection. Upon successful dumping the admin password hash, an attacker can decrypt and obtain the plain-text password. Hence, the attacker could authenticate as Administrator.","status":"published","published":"2021-07-29T17:11:30Z","modified":"2024-08-04T01:01:58.489Z","updated_at":"2026-11-02T14:33:05.989686Z"}],"euvd":[{"id":"EUVD-2021-23218","description":"Sourcecodester Online Covid Vaccination Scheduler System 1.0 is vulnerable to SQL Injection. The username parameter is vulnerable to time-based SQL injection. Upon successful dumping the admin password hash, an attacker can decrypt and obtain the plain-text password. Hence, the attacker could authenticate as Administrator.","status":"published","published":"2021-07-29T17:11:30Z","modified":"2024-08-04T01:01:58Z","updated_at":"2026-11-03T03:24:29.329171Z"}],"ghsa":[{"id":"GHSA-jpfx-pvpj-qwrq","title":"Sourcecodester Online Covid Vaccination Scheduler System 1.0 is vulnerable to SQL Injection. The...","description":"Sourcecodester Online Covid Vaccination Scheduler System 1.0 is vulnerable to SQL Injection. The username parameter is vulnerable to time-based SQL injection. Upon successful dumping the admin password hash, an attacker can decrypt and obtain the plain-text password. Hence, the attacker could authenticate as Administrator.","status":"published","published":"2022-05-24T19:09:21Z","modified":"2023-01-30T05:00:59Z","cwes":["CWE-89"],"updated_at":"2026-11-02T14:46:19.140142Z"}],"nvd":[{"id":"CVE-2021-36621","description":"Sourcecodester Online Covid Vaccination Scheduler System 1.0 is vulnerable to SQL Injection. The username parameter is vulnerable to time-based SQL injection. Upon successful dumping the admin password hash, an attacker can decrypt and obtain the plain-text password. Hence, the attacker could authenticate as Administrator.","status":"published","published":"2021-07-30T14:15:18.2Z","modified":"2026-06-17T03:58:58.37Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-89"],"updated_at":"2026-11-02T14:06:56.185362Z"}]}}