CVE-2026-8790

medium

Description

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.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/c5d17538-30ff-423c-bd61-d85a3f5aba74?source=cve

https://plugins.trac.wordpress.org/changeset/3538628/football-pool/trunk/widgets/widget-football-pool-shoutbox.php

https://plugins.trac.wordpress.org/browser/football-pool/trunk/widgets/widget-football-pool-shoutbox.php#L84

https://plugins.trac.wordpress.org/browser/football-pool/trunk/widgets/widget-football-pool-shoutbox.php#L142

https://plugins.trac.wordpress.org/browser/football-pool/trunk/widgets/widget-football-pool-shoutbox.php#L127

https://plugins.trac.wordpress.org/browser/football-pool/tags/2.13.4/widgets/widget-football-pool-shoutbox.php#L84

https://plugins.trac.wordpress.org/browser/football-pool/tags/2.13.4/widgets/widget-football-pool-shoutbox.php#L142

https://plugins.trac.wordpress.org/browser/football-pool/tags/2.13.4/widgets/widget-football-pool-shoutbox.php#L127

Details

Source: Mitre, NVD

Published: 2026-08-05

Updated: 2026-08-05

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.0022