What is CVE-2026-56785?

CVE-2026-56785 is a high-severity vulnerability in Flatpress, classified under Cross-site Scripting. CVSS score: 8.2/10. Published 2026-06-23.

How severe is CVE-2026-56785?

High severity. CVSS v3 base score is 8.2 out of 10.

XSS in Flatpress

CVE-2026-56785

FlatPress contains a stored cross-site scripting vulnerability in comment and contact forms where name, URL, and email fields are rendered without proper output encoding in Smarty templates. Attackers can inject arbitrary HTML and JavaScri…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (15.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N.

Affected products

Flatpress — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-56785?: CVE-2026-56785 is a high-severity vulnerability in Flatpress, classified under Cross-site Scripting. CVSS score: 8.2/10. Published 2026-06-23.
How severe is CVE-2026-56785?: High severity. CVSS v3 base score is 8.2 out of 10.