What is CVE-2026-57645?

CVE-2026-57645 is a high-severity vulnerability in Tribulant Software Newsletters, classified under Missing Authorization. CVSS score: 8.1/10. Published 2026-06-26.

How severe is CVE-2026-57645?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Tribulant Software Newsletters

CVE-2026-57645

newsletters_subscribers Broken Access Control in Newsletters <= 4.13 versions.

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H.

Affected products

Tribulant Software Newsletters — versions n/a

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-57645?: CVE-2026-57645 is a high-severity vulnerability in Tribulant Software Newsletters, classified under Missing Authorization. CVSS score: 8.1/10. Published 2026-06-26.
How severe is CVE-2026-57645?: High severity. CVSS v3 base score is 8.1 out of 10.