HTTP response splitting in Joomla! - CVE-2026-71572
Published: August 18, 2026
Vulnerability identifier: #VU144202
CSH Severity: Medium
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-71572
CWE-ID: CWE-113
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause reflected file download and content-type confusion.
The vulnerability exists due to improper output neutralization in multiple download views when handling crafted requests. A remote attacker can send a specially crafted request to cause reflected file download and content-type confusion.
Affected software
Joomla!
How to mitigate CVE-2026-71572
Install security update from vendor's website.
Joomla! - addressed in versions 5.4.8, 6.1.3