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CVE-2026-66683: WordPress Custom CSS and JavaScript plugin <= 2.0.16 - Sensitive Data Exposure vulnerability

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-06 · updated 2026-10-24
• Weakness: CWE-201

Description

Unauthenticated Sensitive Data Exposure in Custom CSS and JavaScript <= 2.0.16 versions.

Affected products

• WP Zone Custom CSS and JavaScript: through 2.0.16

References

• https://patchstack.com/database/wordpress/plugin/custom-css-and-javascript/vulnerability/wordpress-custom-css-and-javascript-plugin-2-0-16-sensitive-data-exposure-vulnerability?_s_id=cve

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