CVE-2026-66483
CriticalCVSS 9.8Summary
PHP Object Injection vulnerability in the Education Center theme in versions up to and including 3.6.12. An unauthenticated attacker can inject a malicious PHP object, potentially leading to further exploitation. The vulnerability stems from a lack of input validation.
Risk Assessment
An unauthenticated attacker can remotely exploit the vulnerability without logging in, potentially leading to application takeover or arbitrary code execution. Organizations using this theme are at risk of compromise.
Recommendation
Update the Education Center theme to the latest version that does not contain the vulnerability. If updating is not possible, consider disabling or removing the theme until a patch is released.
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Original NVD description (English source)
Unauthenticated PHP Object Injection in Education Center <= 3.6.12 versions.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS