CVE-2026-65581 CRITICAL

CVE-2026-65581: WordPress AI ANN theme <= 1.29.0 - PHP Object Injection vulnerability

Vendor Axiomthemes

Product AI ANN

Weakness CWE-502 · Unsafe deserialization

Published August 6, 2026

Last update August 6, 2026

View on NVD All CVEs

CVSS base score

9.8/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality High

Integrity High

CVSS vector

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

What the vulnerability does

01Description

Unauthenticated PHP Object Injection in AI ANN <= 1.29.0 versions.

Explanation of Vulnerability in Simple Terms

02Summary

AI ANN versions up to 1.29.0 contain a deserialization vulnerability that allows unauthenticated attackers to execute arbitrary code on the server. The vulnerability exists because the product deserializes untrusted data without proper validation. An attacker can exploit this remotely over the network without authentication or user interaction to gain full control of the affected system.

What an attacker can do

03Attacker Capabilities

Run their own code on the server, read all data, modify or delete files, and take full control of the site.

Potential impact on your site

04Site Impact

Complete compromise of the server and all data hosted on it. Attacker gains unrestricted access to run code and modify content.

Conditions required to exploit

05Prerequisites

Network access to the vulnerable product. No authentication or user interaction required.

Key dates

06Disclosure timeline

August 6, 2026 CVE published

August 6, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-65581 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/502.html AskarLabs — CWE-502 write-up Deserialization of Untrusted Data

Related vulnerabilities