CVE-2026-65577: WordPress Advice theme <= 1.18.0 - PHP Object Injection vulnerability

Published Aug 6, 2026

Updated

Unauthenticated PHP Object Injection in Advice <= 1.18.0 versions.

Affected Software

1 affected component

WordPress Advice theme<=1.18.0

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade WordPress Advice theme to a version that resolves this vulnerability.
Fixed in 1.18.0

Aug 6, 2026

CVE Published

via MITRE·02:27 PM

Data Sourced

via MITRE·02:27 PM

DescriptionSeverityWeakness

CVE-2026-65577 has a severity rating of critical with a score of 9.8.

CVE-2026-65577 is classified as a PHP Object Injection vulnerability.

CVE-2026-65577 allows unauthenticated users to exploit the vulnerability in the Advice theme, potentially leading to remote code execution.

To mitigate CVE-2026-65577, update the WordPress Advice theme to version 1.18.1 or later.

All users running WordPress Advice theme versions 1.18.0 and earlier are affected by CVE-2026-65577.