WordPress security changelog
HIGH CVE-2019-15866 Modified

Crelly Slider: Dangerous file upload

Crelly Slider is affected by dangerous file upload. Exposure depends on how the affected operation is made reachable by the site. Successful exploitation can place attacker-controlled executable content on the server and may lead to full site compromise.

CVE / CNA score 8.8 CVSS · cve@mitre.org
NVD score 8.8 CVSS 3.0 · nvd@nist.gov
Component
Crelly Slider
Plugin slug
crelly-slider
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Sep 03, 2019
Weakness
CWE-434 — Unrestricted Upload of File with Dangerous Type

This CVE was published Sep 03, 2019 and is one of 4 known issues for this plugin.

Update, patch or deactivate.

Update Crelly Slider 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.

Technical description

The crelly-slider plugin before 1.3.5 for WordPress has arbitrary file upload via a PHP file inside a ZIP archive to wp_ajax_crellyslider_importSlider.

NVD vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary and upstream sources