dbcve.org
Deserialization of Untrusted DataWeakness · CWE-502

CVE-2025-0769

MEDIUM · 6.3 CVSS v4.0 Published 2025-02-28
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
72/100
Remediation priority · Elevated
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
PixelYourSite - Your smart PIXEL (TAG) and API Manager 10.1.1.1 was found to be vulnerable. Unvalidated user input is used directly in an unserialize function in myapp/modules/facebook/facebook-server-a sync-task.php.

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 PixelYourSite WordPress plugin version 10.1.1.1 contains a PHP Object Injection vulnerability in the facebook-server-a sync-task.php file. User-supplied input is passed directly to PHP's unserialize() function without any validation, allowing an attacker to inject malicious PHP objects if they can control the serialized data and if suitable gadget chains exist within the application or loaded plugins.

MitigationReplace the unsafe unserialize() call with a safe deserialization method such as json_decode() after implementing proper input validation, or use a whitelist approach if serialization is truly required.

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
High
Privileges
None
Authentication
X
User interaction
None
Scope
X

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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 PixelYourSite plugin is installed
    Navigate to WordPress admin > Plugins and check if 'PixelYourSite' or 'PixelYourSite Pro' appears in the installed plugins list
    Affected if PixelYourSite plugin is present in the WordPress installation
  2. Check installed version
    In WordPress admin > Plugins, find PixelYourSite and view the version number displayed under the plugin name
    Affected if Version is 10.1.1.1 exactly or if the version cannot be determined but the plugin is installed (vulnerable version assumed)
  3. Locate the vulnerable file
    Access the WordPress file system via FTP, SSH, or file manager and navigate to /wp-content/plugins/pixelsite/facebook-server-a/sync-task.php (path may vary based on plugin folder name)
    Affected if The file facebook-server-a/sync-task.php exists in the plugin directory
  4. Inspect for unsafe unserialize call
    Open sync-task.php and search for 'unserialize' - verify that user-controlled input (POST/GET parameters) are passed directly to unserialize() without validation
    Affected if The file contains an unserialize() call that processes input without sanitization (e.g., unserialize($_POST['param']) or similar)
  5. Determine if gadget chains exist
    Review all installed WordPress plugins and themes for PHP classes that could be used as gadget chains for object injection exploitation; this is difficult to determine definitively without a security audit
    Affected if Any plugin or theme loaded on the site contains classes that could be chained with the injection for remote code execution

You are affected if PixelYourSite plugin is installed, the version is 10.1.1.1, and the facebook-server-a/sync-task.php file contains an unserialize() call that processes user-supplied input.

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.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Replace the unsafe unserialize() call with a safe deserialization method such as json_decode() after implementing proper input validation, or use a whitelist approach if serialization is truly required.

Recommended fix Moderate confidence

Latest patched version of PixelYourSite plugin (check WordPress plugin repository for version newer than 10.1.1.1)

  1. 1. Log in to the WordPress admin dashboard
  2. 2. Navigate to Plugins > Installed Plugins
  3. 3. Locate PixelYourSite - Your smart PIXEL (TAG) and API Manager
  4. 4. If an update is available, click 'Update Now' to install the latest patched version
  5. 5. After updating, verify the plugin is functioning correctly on the site
  6. 6. Alternatively, download the latest version from the WordPress plugin repository and upload via Plugins > Add New > Upload Plugin
Caveat Review plugin changelog for any breaking changes or required configuration adjustments before updating in production

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing2.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,420
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An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,272.

Scan for this in your stack

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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-2025-0769 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