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Deserialization of Untrusted DataWeakness · CWE-502

CVE-2024-11409

HIGH · 7.2 CVSS v3.1 Published 2024-11-21
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
78/100
Remediation priority · High
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
The Grid View Gallery plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.0 via deserialization of untrusted input from cs_all_photos_details parameter. This makes it possible for authenticated attackers, with Editor-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

The Grid View Gallery WordPress plugin is vulnerable to PHP Object Injection via unsafe deserialization of the cs_all_photos_details parameter. Authenticated attackers with Editor-level access or higher can inject arbitrary PHP objects. While no POP chain exists in the plugin itself, a chain from another theme or plugin on the target system could enable remote code execution.

MitigationUpdate to a patched version of the plugin if available; otherwise remove or replace the plugin. Limit Editor-level access to only trusted users until remediation is complete.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Confirm Grid View Gallery plugin is installed
    Go to WordPress admin dashboard, navigate to Plugins, and look for 'Grid View Gallery' in the list of installed plugins
    Affected if The plugin appears in the installed plugins list (regardless of active/inactive status)
  2. Identify installed plugin version
    In the Plugins page, click on the plugin name to view details, or open the main plugin PHP file and look for the Version header in the plugin comments
    Affected if The version number matches an unpatched release (compare against the version that includes the security fix)
  3. Check for Editor-level user accounts
    Navigate to Users > All Users in WordPress admin and identify accounts assigned the Editor, Author, or Administrator role
    Affected if There are user accounts with Editor-level or higher privileges, especially untrusted or unfamiliar accounts
  4. Inspect for the vulnerable parameter handling
    Examine plugin source code for AJAX handlers or form processing that uses the cs_all_photos_details parameter with unserialize(), or test by submitting a serialized object to plugin endpoints
    Affected if The plugin processes the cs_all_photos_details parameter through PHP unserialize() without sanitization
  5. Review plugin configuration for public-facing exposure
    Check if any Gallery shortcodes or widgets are published on the site, and examine if the affected PHP unserialize() call can be reached via web request
    Affected if The vulnerable code path is reachable via frontend requests without additional authentication beyond being logged in

You are affected if the Grid View Gallery plugin is installed with an unpatched version and your site has untrusted users with Editor-level access or higher.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update to a patched version of the plugin if available; otherwise remove or replace the plugin. Limit Editor-level access to only trusted users until remediation is complete.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-11409 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data