CVE Watch17 jul 2026

CVE-2026-63101

Open Event Server through 1.19.1 contains a missing authentication vulnerability that allows unauthenticated attackers to export the complet

CVSS

7.5

Alto

EPSS

0.3%

p22

KEV

—

Exploit Today

0-100

Publicado: 17 jul 2026 · Última mod.: 17 jul 2026 · CWE-306

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

Open Event Server through 1.19.1 contains a missing authentication vulnerability that allows unauthenticated attackers to export the complete member roster of any group, including email addresses, names, join dates, and roles, by submitting requests to the group followers CSV export endpoint which lacks any authentication decorator. Attackers can enumerate sequential group IDs via brute-force, trigger an export via the unauthenticated POST endpoint, then poll the unauthenticated task status endpoint until completion to retrieve a download URL containing the full member CSV.

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