CVE-2021-42077 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://packetstormsecurity.com/files/164777/PHP-Event-Calendar-Lite-Edition-SQL-Injection.html https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-048.txt

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8