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Image Hover Effects Ultimate <= 9.6.1 — Unauthenticated Arbitrary Options Update

CVE-2021-36888Published · Updated

Action summary

Affected: ≤9.6.1Update to 9.6.2 or newer

All remediation steps
Watch plugin
Severity
Critical9.8
CVSS
9.8
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:H Confidentiality
High
I:H Integrity
High
A:H Availability
High
Weakness
CWE-284 Improper Access Control
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

Image Hover Effects Ultimate ( Image Gallery, Effects, Lightbox, Comparison & Magnifier ) image-hover-effects-ultimate

  1. Affected≤ 9.6.1
  2. Patched in9.6.2

Update to 9.6.2 or newer.

You are affected if you run ≤ 9.6.1. Version 9.6.2 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Image Hover Effects Ultimate ( Image Gallery, Effects, Lightbox, Comparison & Magnifier ).
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 9.6.2, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Image Hover Effects Ultimate ( Image Gallery, Effects, Lightbox, Comparison & Magnifier ) to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to John Castro.

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

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in Image Hover Effects Ultimate ( Image Gallery, Effects, Lightbox, Comparison & Magnifier )

All 10
More vulnerabilities in Image Hover Effects Ultimate ( Image Gallery, Effects, Lightbox, Comparison & Magnifier )
SeverityVulnerabilityCVEPublished
Medium4.9Authenticated (Subscriber+) Stored Cross-Site Scripting via 'oxi_image_comparison_before_text' Parameter
≤9.12.2Update to 9.12.3
CVE-2026-118056
Medium6.4Authenticated (Contributor+) DOM-Based Stored Cross-Site Scripting via lightGallery JavaScript Library
≤1.7.1031Update to 1.7.1032
CVE-2025-5092
Medium5.59.8.4 - Authenticated (Admin+) Stored Cross-Site Scripting
9.8.1 – 9.8.4Update to 9.8.5
CVE-2022-4207
High7.2Authenticated (Admin+) Arbitrary Options Update
≤9.7.1Update to 9.7.2
CVE-2022-42459
Medium6.4Authenticated Stored Cross-Site Scripting via Media URL
≤9.7.3Update to 9.8.0
CVE-2022-2935

Timeline

  1. CVE published

    Severity critical, CVSS 9.8

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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