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Advisories

Admidio before 5.0.17 Event Guest Restriction Bypass via events_function.php

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Severity
medium
Date
Affecting

  • admidio >= 0, < 5.0.17

CWE
  • CWE-602 Client-Side Enforcement of Server-Side Security
CVSS
5.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Credit
gwangwon0807, choewonwoo1817, J0hnathanKim, Kamba-netizen, t-211, xo0102, Fasse
Description
Admidio before 5.0.17 contains an improper access control vulnerability that allows authenticated members to register event guests by submitting the additional_guests field when guests are disallowed. Attackers can set additional_guests to the remaining seat count in modules/events/events_function.php to exhaust event capacity and block other members from registering.

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