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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
admidio admidio
Default version status: unaffected
0 to < 5.0.17affected
pkg:composer/admidio/admidioReferences
- https://github.com/Admidio/admidio/issues/2231 ↗
- https://github.com/Admidio/admidio ↗
- https://github.com/Admidio/admidio/security/advisories/GHSA-92g9-59rr-c3qg ↗
- https://github.com/Admidio/admidio/commit/5b0ee3585d2a69a6e85fee00b7b93f3ebc1e44d9 ↗
- https://github.com/Admidio/admidio/releases/tag/v5.0.17 ↗
- https://github.com/Admidio/admidio/blob/v5.0.16/modules/events/events_function.php#L446-L462 ↗
- https://www.vulncheck.com/advisories/admidio-before-5.0.17-event-guest-restriction-bypass-via-events-function-php ↗