CVE-2025-58643: LTL Freight Quotes Object Injection Flaw

CVE-2025-58643 Overview

CVE-2025-58643 is a PHP Object Injection vulnerability in the enituretechnology LTL Freight Quotes – Daylight Edition plugin for WordPress. The flaw stems from deserialization of untrusted data [CWE-502] and affects all versions up to and including 2.2.7. An authenticated attacker with high privileges can submit crafted serialized input that the plugin deserializes, leading to object injection within the WordPress application context. Successful exploitation can compromise confidentiality, integrity, and availability of the affected site.

Critical Impact
Authenticated object injection can lead to arbitrary code execution, data tampering, and full compromise of the WordPress site when a suitable gadget chain is present.

Affected Products

enituretechnology LTL Freight Quotes – Daylight Edition WordPress plugin
Plugin slug: ltl-freight-quotes-daylight-edition
Versions up to and including 2.2.7

Discovery Timeline

2025-09-03 - CVE-2025-58643 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-58643

Vulnerability Analysis

The vulnerability is an Insecure Deserialization issue tracked as [CWE-502]. The LTL Freight Quotes – Daylight Edition plugin processes serialized PHP input from a trusted-looking source without validating its contents. When PHP encounters serialized data and calls unserialize(), it instantiates objects and invokes magic methods such as __wakeup() and __destruct(). If a class with side effects exists in the WordPress runtime, an attacker can chain these methods into a working exploit. The result is PHP Object Injection within the WordPress process.

The attack requires network access and authenticated, high-privileged access to the WordPress admin context. No user interaction is needed once the attacker can reach the vulnerable endpoint. Impact spans confidentiality, integrity, and availability of the host application.

Root Cause

The plugin deserializes attacker-controllable data using PHP's native unserialize() mechanism without enforcing an allowlist of safe classes or validating input structure. Any gadget chain reachable from loaded WordPress core, themes, or other plugins becomes a viable exploitation path. Refer to the Patchstack Vulnerability Report for vendor-specific technical details.

Attack Vector

An authenticated attacker submits a crafted serialized PHP payload to a vulnerable plugin endpoint. The plugin deserializes the payload, instantiating attacker-chosen objects and triggering their magic methods. Depending on installed plugins and themes, gadget chains can yield arbitrary file writes, SQL queries, or remote code execution within the WordPress process.

No verified public proof-of-concept is available at the time of writing. See the linked Patchstack advisory for additional technical context.

Detection Methods for CVE-2025-58643

Indicators of Compromise

Inbound HTTP POST requests to ltl-freight-quotes-daylight-edition endpoints containing serialized PHP patterns such as O:, a:, or s: followed by length prefixes.
Unexpected PHP errors referencing unserialize(), __wakeup, or __destruct in WordPress or PHP-FPM logs.
New or modified PHP files under wp-content/ immediately following plugin requests from authenticated sessions.
Outbound network connections initiated by the PHP worker process to unfamiliar hosts after plugin activity.

Detection Strategies

Inspect WordPress access logs for requests to plugin endpoints carrying serialized object markers in parameters or cookies.
Hunt for privileged WordPress accounts performing unusual administrative actions immediately after sending POST traffic to the plugin.
Correlate WordPress audit logs with file integrity monitoring on wp-content/plugins/ltl-freight-quotes-daylight-edition/.

Monitoring Recommendations

Enable PHP error logging and forward error_log events to a central SIEM for query against deserialization signatures.
Monitor for creation of new administrator accounts or modifications to wp_options entries shortly after plugin requests.
Alert on web shells, modified .htaccess files, or new cron jobs introduced into the WordPress filesystem.

How to Mitigate CVE-2025-58643

Immediate Actions Required

Update the LTL Freight Quotes – Daylight Edition plugin to a version newer than 2.2.7 once the vendor publishes a fixed release.
Restrict WordPress administrative access to trusted IP ranges and enforce multi-factor authentication for all privileged accounts.
Rotate credentials and API keys for any administrator account that may have interacted with the vulnerable endpoint.

Patch Information

Review the Patchstack Vulnerability Report for the latest vendor remediation guidance. Affected versions include all releases up to and including 2.2.7. Apply the vendor-supplied patch as soon as it becomes available and verify the installed plugin version through the WordPress admin dashboard.

Workarounds

Deactivate and remove the ltl-freight-quotes-daylight-edition plugin until a patched release is installed.
Deploy a Web Application Firewall (WAF) rule that blocks requests containing serialized PHP object markers targeting the plugin paths.
Limit the number of accounts holding administrator or equivalent capability roles to reduce the attack surface for authenticated exploitation.

bash

# Disable the vulnerable plugin via WP-CLI as an interim mitigation
wp plugin deactivate ltl-freight-quotes-daylight-edition
wp plugin delete ltl-freight-quotes-daylight-edition