CVE-2021-36888 CRITICAL

CVE-2021-36888: WordPress Image Hover Effects Ultimate plugin <= 9.6.1 - Unauthenticated Arbitrary Options Update leading to full website compromise

Vendor Oxilab
Product Image Hover Effects Ultimate (WordPress plugin)
Weakness CWE-284
Published December 15, 2021
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Unauthenticated Arbitrary Options Update vulnerability leading to full website compromise discovered in Image Hover Effects Ultimate (versions <= 9.6.1) WordPress plugin.

Key dates

02Disclosure timeline

December 15, 2021 CVE published
April 28, 2026 Record updated