CVE-2026-117554

CVE-2026-117554CVE-2026-117554

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.

Scoring

CVSS 4.3 ()
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Last modified2026-10-27
Sourced from NVD. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.