What is CVE-2026-8790?

CVE-2026-8790 is a medium-severity vulnerability in Antoineh Football Pool, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-08-05.

How severe is CVE-2026-8790?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Antoineh Football Pool

CVE-2026-8790

The Football Pool plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the `shouttext` POST parameter of the Shoutbox widget in all versions up to, and including, 2.13.4 due to insufficient input sanitization and output escaping. When a shoutbox form submission fails the nonce check (or `shouttext` is empty, or the user is unable to save), the raw POST value is echoed back into a `<textarea>` element using `printf('%s', ...)` with no HTML escaping. This makes it possible for unauthenticated attackers to execute arbitrary web scripts in the browser of an authenticated victim (Subscriber-level or higher) who is tricked into submitting a crafted POST request to a page that contains the Shoutbox widget.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (12.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Antoineh Football Pool — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-8790?: CVE-2026-8790 is a medium-severity vulnerability in Antoineh Football Pool, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-08-05.
How severe is CVE-2026-8790?: Medium severity. CVSS v3 base score is 6.1 out of 10.