CVE-2026-72574

picocms Pico - Host Header Injection Enables Script Source Hijacking

State
Published
Severity
6.1 Medium
Published
Aug 10, 2026
Updated
Aug 10, 2026
Reserved
Aug 10, 2026

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.16.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NTuranSec

Weaknesses

  • CWE-644 Improper Neutralization of HTTP Headers for Scripting Syntax

Affected Products

ProductVersions
Picopicocms
  • 2.1.4 and earlierAffected

References

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