What is the CVSS score of CVE-2026-28138?

CVE-2026-28138 has a CVSS 3.1 base score of 7.2 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Stylemix are affected by CVE-2026-28138?

Organizations using Stylemix uListing plugin version 2.2.0 or earlier face a critical object injection vulnerability that could allow attackers to execute arbitrary code through deserialization…

How to fix or mitigate CVE-2026-28138?

Within 24 hours: Identify all systems running uListing and document affected versions; implement network segmentation to restrict uListing access to trusted users only. Within 7 days: Deploy WAF rules to block suspicious serialized object patterns; disable uListing if not business-critical. Within 30 days: Monitor vendor security advisories for patch availability; develop migration plan to alternative plugins or upgrade when patch released.

Stylemix CVE-2026-28138

HIGH

Deserialization of Untrusted Data (CWE-502)

2026-02-26 audit@patchstack.com

Deserialization

7.2

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.2 HIGH

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

CVE Published

Feb 26, 2026 - 09:16 nvd

HIGH 7.2

DescriptionCVE.org

Deserialization of Untrusted Data vulnerability in Stylemix uListing ulisting allows Object Injection.This issue affects uListing: from n/a through <= 2.2.0.

AnalysisAI

Stylemix uListing versions 2.2.0 and earlier contain an unsafe deserialization vulnerability that enables object injection attacks, allowing authenticated attackers with high privileges to execute arbitrary code on affected systems. With no available patch, this vulnerability presents a significant risk to organizations running vulnerable versions of the plugin. The network-accessible nature of the flaw (CVSS 7.2) means exploitation requires only valid credentials to trigger the attack.

Technical ContextAI

Classified as CWE-502 (Deserialization of Untrusted Data). Affects Stylemix uListing ulisting. Deserialization of Untrusted Data vulnerability in Stylemix uListing ulisting allows Object Injection.This issue affects uListing: from n/a through <= 2.2.0.