Vulnerability · Published Oct 11, 2026 · Assigned by WPScan
CVE-2026-86798HootBoard <= 3.1.4 - Unauthenticated Stored XSS via Board Configuration REST Endpoint
High 8.8
In plain English
A high-severity cross-site scripting in HootBoard from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.3%top 72.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://wpscan.com/vulnerability/a0cfbbb7-4cc5-4ec0-b420-e249204fcd46/ exploit, vdb-entry, technical-description