WordPress security changelog
CRITICAL CVE-2026-66650 Deferred

FreightCo permits unauthenticated PHP object injection

FreightCo through 1.1.15 permits an unauthenticated attacker to supply serialized data to an unsafe PHP deserialization operation. A usable object chain can compromise site confidentiality, integrity, and availability.

CVE / CNA score 9.8 CVSS 3.1 · audit@patchstack.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
FreightCo
Plugin slug
freightco
Affected
n/a through 1.1.15
Safe version
See mitigation notes
Published
Aug 24, 2026
Weakness
CWE-502 — Deserialization of Untrusted Data

This CVE was published Aug 24, 2026 and is one of 2 known issues for this theme.

Update, patch or deactivate.

No fixed release is identified. Update when a confirmed patch is available; until then, deactivate the theme when warranted and inspect files, accounts, scheduled tasks, and logs for evidence of compromise.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

Unauthenticated PHP Object Injection in FreightCo <= 1.1.15 versions.

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

Primary and upstream sources