Page Builder: KingComposer: Arbitrary file deletion

Page Builder: KingComposer is affected by arbitrary file deletion. Exploitation requires an authenticated WordPress account. A successful request can remove files outside the intended scope and may make the site unavailable.

CVE / CNA score 8.8 CVSS 3.1 · security@wordfence.com

NVD score 8.8 CVSS 3.1 · nvd@nist.gov

Component: Page Builder: KingComposer
Plugin slug: kingcomposer
Affected: See vendor advisory
Safe version: See mitigation notes
Published: Jun 07, 2023
Weakness: CWE-284 — Improper Access Control
NVD-CWE-Other

This CVE was published Jun 07, 2023 and is one of 6 known issues for this plugin.

What to do

Update, patch or deactivate.

Update Page Builder: KingComposer to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The Page Builder: KingComposer plugin for WordPress is vulnerable to authorization bypass in versions up to, and including, 2.9.3. This is due to a security nonce being leaked in the '/wp-admin/index.php' page. This makes it possible for authenticated attackers to change arbitrary WordPress options, delete arbitrary files/folders, and inject arbitrary content.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

References

Update, patch or deactivate.

Technical description

Primary and upstream sources