CVE-2026-72574 — picocms Pico - Host Header Injection Enables Script Source Hijacking
A host header injection vulnerability in picocms/Pico through 2.1.4 allows an unauthenticated remote attacker to control the origin of JavaScript and CSS assets loaded by the de…
Published: 2026-08-10 · CVSS: 6.1 · CVSS 3.1
A host header injection vulnerability in picocms/Pico through 2.1.4 allows an unauthenticated remote attacker to control the origin of JavaScript and CSS assets loaded by the default theme. When base_url is unset (the default), Pico::getBaseUrl in lib/Pico.php builds the base URL from unvalidated Host, X-Forwarded-Host, X-Forwarded-Proto, and X-Forwarded-Port request headers.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7