What is CVE-2026-57394?

CVE-2026-57394 is a high-severity vulnerability in Tribulant Software Newsletters, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-07-13.

How severe is CVE-2026-57394?

High severity. CVSS v3 base score is 7.1 out of 10.

XSS in Tribulant Software Newsletters

CVE-2026-57394

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Tribulant Software Newsletters newsletters-lite allows Reflected XSS.This issue affects Newsletters: from n/a through <= 4.14.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

Affected products

Tribulant Software Newsletters — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-57394?: CVE-2026-57394 is a high-severity vulnerability in Tribulant Software Newsletters, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-07-13.
How severe is CVE-2026-57394?: High severity. CVSS v3 base score is 7.1 out of 10.