Unsanitized CustomCSS Setting in Highlight WordPress Plugin Allows Cross-Site Scripting Attacks

CVE-2021-24591 · MEDIUM Severity

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

The Highlight WordPress plugin before 0.9.3 does not sanitise its CustomCSS setting, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed

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