CVE-2021-36888

CRITICAL EXPLOITED NUCLEI

Blocksera Image Hover Effects < 9.6.1 - Improper Access Control

Title source: rule

Description

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

Nuclei Templates (1)

WordPress Image Hover Ultimate - Unauthenticated Settings Update

CRITICALVERIFIEDby riteshs4hu

References (2)

[Release Notes, Vendor Advisory] https://wordpress.org/plugins/image-hover-effects-ultimate/#developers

[Third Party Advisory] https://patchstack.com/database/vulnerability/image-hover-effects-ultimate/wordpress-image-hover-effects-ultimate-plugin-9-6-1-unauthenticated-arbitrary-options-update-leading-to-full-website-compromise

Scores

CVSS v3 9.8

EPSS 0.6952

EPSS Percentile 98.7%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

VulnCheck KEV 2021-12-16

CWE

CWE-284 CWE-306

Status published

Products (1)

blocksera/image_hover_effects < 9.6.1

Published Dec 15, 2021

Tracked Since Feb 18, 2026