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CVE-2025-8999

The Sydney theme for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'activate_modules' function in all versions up to, and including, 2.56. This makes it possible for authenticated attackers, with Subscriber-level access and above, to activate or deactivate various theme modules.

CVE-2025-8999CVSS 5.3Web

CVE-2025-8999

The Sydney theme for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'activate_modules' function in all versions up to, and including, 2.56. This makes it possible for authenticated attackers, with Subscriber-level access and above, to activate or deactivate various theme modules.

CVSS: 5.3 MEDIUM
EPSS: 17.89%
Known exploited: not in KEV
Product: -

What is known

The Sydney theme for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'activate_modules' function in all versions up to, and including, 2.56. This makes it possible for authenticated attackers, with Subscriber-level access and above, to activate or deactivate various theme modules.

Sources

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CVE-2025-8999

CVE-2025-8999

What is known

Sources

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