What is the CVSS score of CVE-2026-81781?

CVE-2026-81781 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H. EPSS exploitation probability: 0.2%.

Which versions of Unbounce Landing Pages are affected by CVE-2026-81781?

The Unbounce Landing Pages WordPress plugin (versions ≤1.1.4) lacks proper access controls, allowing any logged-in WordPress user with minimal permissions to disrupt or modify landing page content,…

How to fix or mitigate CVE-2026-81781?

Within 24 hours, inventory all WordPress installations running Unbounce Landing Pages plugin and identify affected versions ≤1.1.4. Within 7 days, restrict low-privilege user access to landing page management functions through WordPress role-capability configuration or by disabling unnecessary user accounts; implement admin review requirements for landing page changes. Within 30 days, monitor Unbounce security advisories and WordPress plugin repository for patch release; establish an upgrade plan for version ≥1.1.5 once available, and consider interim supplementary security plugins to enforce granular capability controls.

Unbounce Landing Pages CVE-2026-81781

EUVD-2026-72650 HIGH

Missing Authorization (CWE-862)

2026-09-08 Patchstack

GHSA-8x3r-6f6w-g9jx

WordPress Wordpress Plugin Unbounce Landing Pages

7.1

CVSS 3.1 · Vendor: Patchstack

Severity by source

Vendor (Patchstack) PRIMARY

7.1 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

vuln.today AI

7.1 HIGH

Network-reachable plugin endpoint; low-privilege authenticated account required; no confidentiality impact; high availability from likely destructive action.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

High

Lifecycle Timeline

Metadata Corrected

Sep 08, 2026 - 08:40 vuln.today

tag: Authentication Bypass removed

Analysis Generated

Sep 08, 2026 - 08:16 vuln.today

CVE Published

Sep 08, 2026 - 07:23 cve.org

HIGH 7.1

DescriptionCVE.org

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.

Articles & Coverage 2

News 17 New WordPress Vulnerabilities - 17 High Severity Sep 09, 2026 News 11 New WordPress Vulnerabilities - 11 High Severity, No POC Sep 08, 2026

AnalysisAI

Missing authorization in the Unbounce Landing Pages WordPress plugin (≤1.1.4) allows authenticated low-privilege users to exploit incorrectly configured access control, resulting in high availability impact and limited integrity modification. The CVSS vector (PR:L, A:H, I:L) indicates that a logged-in WordPress user with minimal permissions can invoke plugin actions without proper capability checks - most likely disrupting or deleting landing page content. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Delivery

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Execution

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Vulnerability AssessmentAI

Exploitation	Exploitation requires a valid authenticated WordPress user account with at minimum low-level privileges (subscriber, contributor, or equivalent role) on the target WordPress installation. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	The CVSS 7.1 score is grounded in a realistic attack profile: network-accessible (AV:N), low complexity (AC:L), requires low-privilege authentication (PR:L), no user interaction (UI:N), with high availability (A:H) and low integrity (I:L) impacts. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation	Update the Unbounce Landing Pages plugin to a version above 1.1.4. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, inventory all WordPress installations running Unbounce Landing Pages plugin and identify affected versions ≤1.1.4. …

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-81781 vulnerability details – vuln.today

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Unbounce Landing Pages CVE-2026-81781

Severity by source

CVSS VectorVendor: Patchstack

Lifecycle Timeline

DescriptionCVE.org

Articles & Coverage 2

AnalysisAI

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Attack ChainAIDerived

Vulnerability AssessmentAI

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More in Wordpress Plugin

Same weakness CWE-862 – Missing Authorization

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