CVE-2026-86798
High
Description
The HootBoard WordPress plugin through 3.1.4 does not perform any authorisation check on some of its REST endpoints, and does not escape the values stored through them before outputting them in a public page, allowing unauthenticated users to inject arbitrary web scripts that will execute in the browser of anyone visiting that page, including administrators.
SeverityHigh
CVSS8.8
Exploit probability—
ProductHootBoard
PublishedOct 11, 2026
First seenOct 11, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| HootBoard | v ≤ 3.1.4 | — |
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