What is the CVSS score of CVE-2026-28074?

CVE-2026-28074 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of ThemeREX Pizza House are affected by CVE-2026-28074?

A critical object injection vulnerability in Pizza House (versions through 1.4.0) allows attackers to execute arbitrary code through deserialization of untrusted data, with a CVSS score of 9.8.

How to fix or mitigate CVE-2026-28074?

Within 24 hours: Identify and inventory all Pizza House installations across the organization and determine version numbers. Isolate affected systems from production networks if feasible. Within 7 days: Implement network segmentation to restrict inbound traffic to Pizza House instances and deploy WAF rules to block suspicious serialized object patterns. Establish monitoring for exploitation attempts. Within 30 days: Upgrade to a patched version immediately upon vendor release, or pursue alternative solutions if the vendor does not provide timely remediation.

ThemeREX Pizza House CVE-2026-28074

CRITICAL

Deserialization of Untrusted Data (CWE-502)

2026-03-05 audit@patchstack.com

Deserialization

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Re-analysis Queued

Apr 22, 2026 - 21:37 vuln.today

cvss_changed

Analysis Generated

Mar 12, 2026 - 22:06 vuln.today

CVE Published

Mar 05, 2026 - 06:16 nvd

CRITICAL 9.8

DescriptionCVE.org

Deserialization of Untrusted Data vulnerability in ThemeREX Pizza House pizzahouse allows Object Injection.This issue affects Pizza House: from n/a through <= 1.4.0.

AnalysisAI

Deserialization of untrusted data in Pizza House (pizzahouse) WordPress theme allows PHP Object Injection, potentially enabling remote code execution through POP chains.

Technical ContextAI

CWE-502 deserialization of untrusted data in pizzahouse. Attacker-controlled data is passed to unserialize(), enabling instantiation of arbitrary PHP objects.