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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
antoineh:football pool
References 8
https://plugins.trac.wordpress.org/browser/football-pool/tags/2.13.4/widgets/wi…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/football-pool/tags/2.13.4/widgets/wi…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/football-pool/tags/2.13.4/widgets/wi…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/football-pool/trunk/widgets/widget-f…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/football-pool/trunk/widgets/widget-f…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/football-pool/trunk/widgets/widget-f…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset/3538628/football-pool/trunk/widget…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/c5d17538-30ff-423c-bd…
security@wordfence.com