CVE-2025-9945: Optimize More! – CSS <= 1.0.3 - Cross-Site Request Forgery to Plugin Settings Reset

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-10-03 · updated 2026-10-08
Weakness: CWE-352

Description

The Optimize More! – CSS plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0.3. This is due to missing or incorrect nonce validation on the reset_plugin function. This makes it possible for unauthenticated attackers to reset the plugin's optimization settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Affected products

aryadhiratara Optimize More! – CSS: through 1.0.3

References

https://plugins.trac.wordpress.org/browser/optimize-more-css/trunk/includes/classes/Settings.php#L216
https://www.wordfence.com/threat-intel/vulnerabilities/id/64aadd20-a831-4550-b68d-827722a35c0f?source=cve

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