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CVE-2026-86790mediumCWE-79

WP Highlight Box <= 1.0 - Contributor+ Stored XSS via highlight-box Shortcode

33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 6.8epss 0.4%
exploitation probability
0.4%top 65% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
The WP Highlight Box WordPress plugin through 1.0 does not escape some shortcode attributes before outputting them in a page where the shortcode is embedded, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.