CVE-2021-24591

PoC —

CVSS 3.1

5.4 medium

EPSS

<1%p48

Published

Sep 6, 2021 (Sep 6, 2021)

Modified

Jun 17, 2026

Description

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

Vendors: dna88
Products: highlight
Ecosystems: WordPress
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.6%)

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