CVE-2021-42077

CVSS V2 High 10 CVSS V3 Critical 9.8
Description
PHP Event Calendar before 2021-09-03 allows SQL injection, as demonstrated by the /server/ajax/user_manager.php username parameter. This can be used to execute SQL statements directly on the database, allowing an adversary in some cases to completely compromise the database system. It can also be used to bypass the login form.
Overview
  • CVE ID
  • CVE-2021-42077
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-11-08T04:15:08
  • Last Modified Date
  • 2021-11-09T19:28:05
Weakness Enumerations
CWE URL
CWE-89 http://cwe.mitre.org/data/definitions/89.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:kaysongroup:php_event_calendar:*:*:*:*:lite:*:*:* 1 OR 2021-09-03
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 10
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
http://packetstormsecurity.com/files/164777/PHP-Event-Calendar-Lite-Edition-SQL-Injection.html Exploit Third Party Advisory VDB Entry
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-048.txt Exploit Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-42077
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42077
History
Created Old Value New Value Data Type Notes
2022-05-10 06:47:47 Added to TrackCVE
2022-12-05 14:01:06 2021-11-08T04:15Z 2021-11-08T04:15:08 CVE Published Date updated
2022-12-05 14:01:06 2021-11-09T19:28:05 CVE Modified Date updated
2022-12-05 14:01:07 Analyzed Vulnerability Status updated