CVE-2026-73327: Joomla 6.1.1 Zip Slip Path Traversal via com_joomlaupdate extract.php
Joomla 6.1.1 contains a path traversal vulnerability in the comjoomlaupdate extension that allows a Super User to be induced into extracting a crafted archive containing directory traversal sequences or absolute paths in ZIP entry filenames. Attackers can supply malicious ZIP entry names with parent-directory segments or absolute paths to the extract.php extraction routine, causing files to be written outside the intended destination root and enabling persistent remote code execution via planted PHP files.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-73327?
CVE-2026-73327 has a severity rating of 7.6, classified as high.
How do I fix CVE-2026-73327?
To fix CVE-2026-73327, upgrade Joomla to the latest version that addresses this vulnerability.
What type of vulnerability is CVE-2026-73327?
CVE-2026-73327 is a path traversal vulnerability found in the com_joomlaupdate extension.
Who is affected by CVE-2026-73327?
CVE-2026-73327 affects Super Users in Joomla 6.1.1 when extracting crafted archive files.
What is the potential impact of CVE-2026-73327?
The potential impact of CVE-2026-73327 includes unauthorized access to sensitive files due to directory traversal attacks.