CVE-2025-8487

Kubio AI Page Builder <= 2.6.3 - Missing Authorization to Authenticated (Subscriber+) Limited Plugin Installation

2025-09-18 14:48

Strategic Overview

Status: Patched in 2.6.5
Affected Plugin: Kubio AI Page Builder
Affected Version: <= 2.6.3
CVSS: 5.4Medium
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2025-8487

View all Kubio AI Page Builder vulnerabilities

At a glance

CVE-2025-8487 is a medium-severity Missing Authorization vulnerability in the Kubio AI Page Builder WordPress plugin, affecting versions <= 2.6.3. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 2.6.5; sites on affected versions should update now. Disclosed September 2025, reported by wesley (wcraft).

Vulnerability Overview

The Kubio AI Page Builder plugin for WordPress is vulnerable to unauthorized plugin installation due to a missing capability check on the kubio-image-hub-install-plugin AJAX action in all versions up to, and including, 2.6.3. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install the Image Hub plugin.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-862: Missing Authorization

Reaching this weakness in Kubio AI Page Builder <= 2.6.3 takes an account at Subscriber level or above. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Kubio AI Page Builder the fix is 2.6.5: builds <= 2.6.3 are affected, anything from 2.6.5 onward is not.

Remediation

Update to version 2.6.5, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Kubio AI Page Builder 2.6.5 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2025-8487 https://www.wordfence.com/threat-intel/vulnerabilities/id/1f528c89-2b8c-4750-b9eb-47ebd8c1630e https://nvd.nist.gov/vuln/detail/CVE-2025-8487

Related records

Same weakness class

Other vulnerabilities in Kubio AI Page Builder

CVSS Vector

5.4

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityLow

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