Deserialization of Untrusted DataWeakness · CWE-502

CVE-2025-54742

HIGH · 8.8 CVSS v3.1 Published 2025-08-28
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
94/100
Remediation priority · Urgent
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
Deserialization of Untrusted Data vulnerability in magepeopleteam WpEvently mage-eventpress allows Object Injection.This issue affects WpEvently: from n/a through <= 4.4.8.

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 · moderate confidence

This is a PHP Object Injection vulnerability in the WpEvently WordPress plugin by magepeopleteam. The plugin deserializes untrusted data without proper validation, allowing authenticated attackers (or potentially unauthenticated depending on the code path) to instantiate arbitrary PHP objects. This can lead to remote code execution if available magic methods (__wakeup, __destruct, __toString) can be chained with POP gadgets present in the plugin or other WordPress plugins.

MitigationUpdate WpEvently plugin to the latest version when available. If no patch exists, disable the plugin and remove it from the WordPress installation. As a temporary measure, deploy a WAF rule to block deserialization-related payloads.

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

CVSS:3.1/AV:N/AC:L/PR:L/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 WpEvently plugin is installed
    Navigate to WordPress admin dashboard > Plugins > Installed Plugins. Look for 'WpEvently' by 'magepeopleteam' in the list. Note whether it is active or inactive.
    Affected if The plugin is installed and active, making the vulnerable code available to attackers.
  2. Identify WpEvently plugin version
    In the Plugins list, click on 'WpEvently' to view plugin details, or check the plugin main PHP file header for 'Version:' comment. Compare this version to the latest patched version when published.
    Affected if Running any version prior to the patched release is potentially vulnerable.
  3. Locate deserialization code in plugin files
    Access the site via file manager or FTP. In the wp-content/plugins/wp-evently/ directory, search PHP files for 'unserialize(' function calls. Common paths include ajax handlers, shortcodes, or widget files.
    Affected if The plugin contains unserialize() calls processing user-supplied data without validation.
  4. Identify accessible entry points
    Review plugin PHP files for AJAX actions (wp_ajax_*), REST API endpoints, or shortcode handlers that accept serialized data. Check if these require authentication or are accessible to unauthenticated users.
    Affected if Deserialization occurs on an unauthenticated or low-privilege accessible endpoint.
  5. Assess POP gadget availability
    Review all active WordPress plugins for potential PHP object injection gadgets (classes with __wakeup, __destruct, or __toString methods that could be chained for RCE).
    Affected if POP gadgets exist in the plugin or other active plugins, enabling remote code execution.

The environment is affected if the WpEvently plugin is active, contains unserialize() calls processing input, and the attack surface (AJAX/REST/shortcode) is accessible to attackers, combined with available POP gadgets for exploitation.

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 WpEvently plugin to the latest version when available. If no patch exists, disable the plugin and remove it from the WordPress installation. As a temporary measure, deploy a WAF rule to block deserialization-related payloads.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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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-2025-54742 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
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