CVE-2017-8920: Cgiirc Cgi:irc

Medium severity, CVSS 6.1. EPSS: 0.7% chance of exploitation in the next 30 days.

irc.cgi in CGI:IRC before 0.5.12 reflects user-supplied input from the R parameter without proper output encoding, aka XSS.

Affected products

• Cgiirc Cgi:irc: up to and including 0.5.11

Published 2017-06-06. Last modified 2026-06-17.