CVE-2026-117554
CVE-2026-117554 · Admidio before 5.0.17 Event Guest Restriction Bypass via events_function.php
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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.
CVSS 5.3 · Mittel · Korrektur verfügbar
- Veröffentlicht
- Aktualisiert
Betroffene Produkte und Versionen
admidio
- Softwareversionen
- ≥ 0, < 5.0.17: Betroffen (semver)
Auf 5.0.17 aktualisieren
Originalquellen
- 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
- https://nvd.nist.gov/vuln/detail/CVE-2026-117554