Auth bypass in Nexcess Event Tickets

CVE-2026-57705

Missing Authorization vulnerability in Nexcess Event Tickets event-tickets allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Event Tickets: from n/a through <= 5.28.5.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.003 (26.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-57705: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-57705?
CVE-2026-57705 is a high-severity vulnerability in Nexcess Event Tickets, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-07-13.
How severe is CVE-2026-57705?
High severity. CVSS v3 base score is 7.5 out of 10.