CVE-2026-86790WP Highlight Box <= 1.0 - Contributor+ Stored XSS via highlight-box Shortcode
Updated under an hour ago ()
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It affects Unknown WP Highlight Box. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 6.8 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- WPScan
- NVD analysis
- Deferred
- Record last updated
- Sep 12, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Unknown WP Highlight Box unknown:wp_highlight_box (from the name) | through 1.0 | CNA record |
References
- https://wpscan.com/vulnerability/b48571ae-368e-4193-977a-f22fb09db4d4/exploit, vdb-entry, technical-description
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.