CVE-2026-39550 HIGH

CVE-2026-39550: WordPress Aperitif theme <= 1.6 - PHP Object Injection vulnerability

Vendor Elated-Themes

Product Aperitif

Weakness CWE-502 · Unsafe deserialization

Published June 2, 2026

Last update June 2, 2026

View on NVD All CVEs

CVSS base score

8.1/10

Attack vector Network

Attack complexity High

Privileges required None

User interaction None

Confidentiality High

Integrity High

CVSS vector

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

What the vulnerability does

01Description

Deserialization of Untrusted Data vulnerability in Elated-Themes Aperitif allows Object Injection. This issue affects Aperitif: from n/a through 1.6.

Explanation of Vulnerability in Simple Terms

02Summary

Aperitif versions up to 1.6 contain a deserialization vulnerability that allows attackers to execute arbitrary code on affected sites. The vulnerability requires network access and high attack complexity but no authentication. An attacker can craft malicious serialized data to trigger code execution during deserialization. Sites running Aperitif 1.6 or earlier should update immediately.

What an attacker can do

03Attacker Capabilities

Run arbitrary code on the site without authentication.

Potential impact on your site

04Site Impact

Complete site compromise: data theft, malware injection, or site takeover possible.

Conditions required to exploit

05Prerequisites

Network access; attacker must craft and deliver malicious serialized data (high attack complexity).

Key dates

06Disclosure timeline

June 2, 2026 CVE published

June 2, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-39550 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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