CVE-2026-12349 | The Premium Addons for KingComposer plugin for WordPress is … | CVSS 5.3 MEDIUM

Description

The Premium Addons for KingComposer plugin for WordPress is vulnerable to unauthorized modification and loss of data in versions up to, and including, 1.1.1. This is due to missing authorization and capability checks on the add_custom_sidebar() and remove_custom_sidebar() AJAX handlers, both of which are exposed through wp_ajax_nopriv_* hooks and write directly to the octagon_custom_sidebar option via update_option(). This makes it possible for unauthenticated attackers to create arbitrary custom widget areas or delete existing custom sidebars, which can cause widgets assigned to those areas to silently lose their registration and stop rendering.

Metadata

CVE ID: CVE-2026-12349
State: PUBLISHED
Assigner: Wordfence
Reserved: 2026-06-15 20:28 UTC
Published: 2026-06-30 04:30 UTC
Last updated: 2026-06-30 04:30 UTC
Primary CWE: CWE-862
CWE-862 Missing Authorization
Vendor / Product: octagonwebstudio / Premium Addons for KingComposer
Sources: cve.org · NVD

Severity & Metrics

5.3 MEDIUM CVSS 3.1

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

Affected products (1)

Vendor	Product	Platform	Versions
octagonwebstudio	Premium Addons for KingComposer	—	0 ≤ 1.1.1

Weakness (CWE)

CWE	Source	Description
CWE-862	cna	CWE-862 Missing Authorization

CVSS scores (1)

Score	Severity	Version	Source	Vector
5.3	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References (6)