CVE-2026-32508 MEDIUM

CVE-2026-32508: WordPress Halstein theme < 1.8 - Arbitrary Object Instantiation vulnerability

Vendor Mikado-Themes

Product Halstein

Weakness CWE-502 · Unsafe deserialization

Published March 25, 2026

Last update April 29, 2026

View on NVD All CVEs

CVSS base score

5.4/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality None

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Deserialization of Untrusted Data vulnerability in Mikado-Themes Halstein halstein allows Object Injection.This issue affects Halstein: from n/a through < 1.8.

Explanation of Vulnerability in Simple Terms

02Summary

Halstein versions before 1.8 contain a deserialization vulnerability that allows authenticated users to modify site data. An attacker with low-level access can send specially crafted requests to trigger unsafe deserialization, compromising data integrity. Update to version 1.8 or later to resolve this issue.

What an attacker can do

03Attacker Capabilities

Modify site data or cause the site to malfunction by sending malicious serialized objects.

Potential impact on your site

04Site Impact

Authenticated users can corrupt or alter site content and functionality without authorization.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account on the site; no user interaction required.

Key dates

06Disclosure timeline

March 25, 2026 CVE published

April 29, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-32508 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/502.html AskarLabs — CWE-502 write-up Deserialization of Untrusted Data

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