CVE-2021-24591 describes a Cross-Site Scripting (XSS) vulnerability in the Highlight WordPress plugin prior to version 0.9.3, affecting the dna88 highlight product. This medium-severity vulnerability (CVSS 5.4) allows authenticated, high-privilege users to inject malicious scripts due to unsanitized CustomCSS settings, even if the unfiltered_html capability is disabled. While the attack complexity is low and user interaction is required, successful exploitation could lead to limited impact on confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.9.3CPE matchmatch criteria | cpe:2.3:a:dna88:highlight:*:*:*:*:*:wordpress:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.