CVE-2026-86798CWE-79cross-site-scripting

CVE-2026-86798

High · published October 11, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
26.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00340 · 26.2th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-10-11T11:17Z
References (1)
https://wpscan.com/vulnerability/a0cfbbb7-4cc5-4ec0-b420-e249204fcd46/ · [email protected]
EPSS history
Timeline
  • 12 OCT 03:31Z
    EPSS moved — → 0%
    epss
  • 11 OCT 06:00Z
    HootBoard <= 3.1.4 - Unauthenticated Stored XSS via Board Configuration REST Endpoint
    cvelistv5
  • 11 OCT 06:00Z
    HootBoard <= 3.1.4 - Unauthenticated Stored XSS via Board Configuration REST Endpoint
    cvelistv5