Is Deserialization affected by CVE-2026-27338?

A critical object injection vulnerability in AivahThemes Car Zone (versions ≤3.7) allows attackers to execute arbitrary code through deserialization of malicious data. Organizations running affected versions face immediate risk of data breach, system compromise, and potential ransomware deployment.

CVE-2026-27338

Q: How to fix CVE-2026-27338?

Within 24 hours: Identify all Car Zone installations and their versions; isolate affected systems from production networks if possible and document business justification for any systems remaining connected. Within 7 days: Implement WAF rules blocking suspicious deserialization patterns; restrict administrative access to Car Zone interfaces; enable detailed logging and monitoring for exploitation attempts. Within 30 days: Evaluate upgrade to patched version once available; consider alternative themes if patch timeline extends beyond acceptable risk window; conduct forensic review of access logs for compromise indicators.

HIGH

2026-03-05 [email protected]

8.8

CVSS 3.1

CVSS Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:06 vuln.today

CVE Published

Mar 05, 2026 - 06:16 nvd

HIGH 8.8

Description

Deserialization of Untrusted Data vulnerability in AivahThemes Car Zone carzone allows Object Injection.This issue affects Car Zone: from n/a through <= 3.7.

Analysis

Object injection through unsafe deserialization in AivahThemes Car Zone up to version 3.7 allows authenticated attackers to execute arbitrary code with network access and no user interaction required. With a CVSS score of 8.8 indicating high severity, this vulnerability poses a significant risk to affected installations, though no patch is currently available. …

Remediation

Within 24 hours: Identify all Car Zone installations and their versions; isolate affected systems from production networks if possible and document business justification for any systems remaining connected. Within 7 days: Implement WAF rules blocking suspicious deserialization patterns; restrict administrative access to Car Zone interfaces; enable detailed logging and monitoring for exploitation attempts. …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.1

CVSS: +44

POC: 0

CVE-2026-27338 vulnerability details – vuln.today

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CVE-2026-27338

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CVE-2026-27338

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