What is CVE-2026-81781?

CVE-2026-81781 is a high-severity vulnerability in Unbounce Landing Pages, classified under Missing Authorization. CVSS score: 7.1/10. Published 2026-09-08.

How severe is CVE-2026-81781?

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

Auth bypass in Unbounce Landing Pages

CVE-2026-81781

Missing Authorization vulnerability in Unbounce Unbounce Landing Pages unbounce allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Unbounce Landing Pages: from n/a through 1.1.4.

Vulnerability class: Broken Access Control

CVSS v3 metric

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

Affected products

Unbounce Landing Pages

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-81781?: CVE-2026-81781 is a high-severity vulnerability in Unbounce Landing Pages, classified under Missing Authorization. CVSS score: 7.1/10. Published 2026-09-08.
How severe is CVE-2026-81781?: High severity. CVSS v3 base score is 7.1 out of 10.