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Meow Gallery (+ Gallery Block) <= 4.1.9 — Missing Authorization to Arbitrary Options Update

67ae29ee-ec3d-41d2-8691-ba1c615d243dPublished · Updated

Action summary

Affected: ≤4.1.9Update to 4.2.0 or newer

All remediation steps
Severity
High8.8
CVSS
8.8
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/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:L Privileges required
Low
UI:N User interaction
None
S:U Scope
Unchanged
C:H Confidentiality
High
I:H Integrity
High
A:H Availability
High
Weakness
CWE-862 Missing Authorization
Required access
Unknown
Exploit prediction (EPSS)
No score
CISA KEV
Not listed

Am I affected?

Meow Gallery meow-gallery

  1. Affected≤ 4.1.9
  2. Patched in4.2.0

Update to 4.2.0 or newer.

You are affected if you run ≤ 4.1.9. Version 4.2.0 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Meow Gallery.
  • No admin access? Run a passive check of your site. It reads public files only.

What to do

  1. Update to version 4.2.0, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Meow Gallery to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to WPScanTeam.

The Meow Gallery plugin for WordPress is vulnerable to Arbitrary Options Update via the REST API in versions up to, and including, 4.1.9. This makes it possible for unauthenticated attackers to modify otherwise restricted arbitrary site options. This can be leveraged to create new administrative user accounts.

Exploits & references

Proof-of-concept & detection

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

Advisories & patches

More in Meow Gallery

All 11
More vulnerabilities in Meow Gallery
SeverityVulnerabilityCVEPublished
Medium6.4Authenticated (Author+) Stored Cross-Site Scripting via Attachment Alt Text (aria-label attribute)
≤5.5.1Update to 5.5.2
CVE-2026-9239
Medium6.5Missing Authorization to Authenticated (Author+) Information Disclosure via fetch_posts REST Endpoint
≤5.5.4Update to 5.5.5
CVE-2026-13747
Medium5.3Unauthenticated Arbitrary Shortcode Execution
≤5.5.4Update to 5.5.5
CVE-2026-92422
Medium4.3Authenticated (Author+) Information Exposure
≤5.5.4Update to 5.5.5
CVE-2026-92423
Medium6.4Authenticated (Author+) Stored Cross-Site Scripting
≤5.5.1Update to 5.5.2
CVE-2026-15386

Same weakness (Missing Authorization)

All Missing Authorization
Other Missing Authorization vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent HeaderCVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form SubmissionCVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' ParameterCVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity high, CVSS 8.8

  2. Record last updated

Sources & licenses

Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
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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