Deserialization of Untrusted DataWeakness · CWE-502

CVE-2025-27286

CRITICAL · 9.8 CVSS v3.1 Published 2025-04-17
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges 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
Deserialization of Untrusted Data vulnerability in saoshyant1994 Saoshyant Slider saoshyant-slider allows Object Injection.This issue affects Saoshyant Slider: from n/a through <= 3.0.

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

This is a PHP Object Injection vulnerability in the Saoshyant Slider WordPress plugin. The plugin deserializes untrusted data without proper validation, allowing attackers to inject malicious PHP objects. When crafted with appropriate magic methods (like __wakeup or __destruct), this can lead to remote code execution on the affected WordPress site.

MitigationImmediately update the plugin to the latest version if a patch is available, or disable/remove the saoshyant-slider plugin until a patched version is released. If the plugin is abandoned, replace with a maintained alternative slider solution.

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
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/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. Verify Saoshyant Slider plugin is installed
    Navigate to WordPress admin > Plugins and look for 'Saoshyant Slider' or check the /wp-content/plugins/ directory for the saoshyant-slider folder
    Affected if The plugin is present in the WordPress installation
  2. Identify the installed plugin version
    In WordPress admin > Plugins > Saoshyant Slider, view the plugin details to see the version number. Alternatively, check the main plugin PHP file for the 'Version' header in the plugin comment block
    Affected if Version cannot be determined or is earlier than the patched release
  3. Locate deserialization code in the plugin
    Search the plugin files for 'unserialize' function calls. Check AJAX handler files (often in includes/ or classes/ folders) and any file that processes $_POST, $_GET, or $_REQUEST parameters
    Affected if The plugin code contains unserialize() calls processing external input without validation
  4. Check if AJAX or public endpoints are accessible
    Examine the plugin's AJAX action hooks (look for 'wp_ajax_' and 'wp_ajax_nopriv_' in the code) and verify they can be reached without authentication
    Affected if The plugin exposes AJAX endpoints callable by unauthenticated users that handle serialized data

If Saoshyant Slider plugin is installed and processes untrusted serialized data through accessible endpoints without validation, the environment is affected by CVE-2025-27286.

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

Immediately update the plugin to the latest version if a patch is available, or disable/remove the saoshyant-slider plugin until a patched version is released. If the plugin is abandoned, replace with a maintained alternative slider solution.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing1.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,090
Get help mitigating

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Scan for this in your stack

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dbcve dependency scanner

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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-2025-27286 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