CVE-2026-27084

| EUVD-2026-15796 CRITICAL
2026-03-25 Patchstack GHSA-qq9h-65hg-3824
9.8
CVSS 3.1
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CVSS Vector

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

3
EUVD ID Assigned
Mar 25, 2026 - 16:47 euvd
EUVD-2026-15796
Analysis Generated
Mar 25, 2026 - 16:47 vuln.today
CVE Published
Mar 25, 2026 - 16:14 nvd
CRITICAL 9.8

Tags

Deserialization

Description

Deserialization of Untrusted Data vulnerability in ThemeREX Buisson buisson allows Object Injection.This issue affects Buisson: from n/a through <= 1.1.11.

Analysis

A PHP Object Injection vulnerability exists in the ThemeREX Buisson WordPress theme through version 1.1.11, stemming from unsafe deserialization of untrusted data (CWE-502). This flaw allows attackers to inject malicious serialized objects that can lead to arbitrary code execution or other object manipulation attacks depending on available gadget chains in the WordPress environment. …

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Remediation

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Restrict deserialization to trusted data sources and implement integrity checks.

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Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +49
POC: 0

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CVE-2026-27084 vulnerability details – vuln.today
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