ASA-2019-00077 – Joomla: Browserside mime-type sniffing causes XSS attack vectors

Posted on by Allele Security Intelligence in Alerts

Allele Security Alert

ASA-2019-00077

Identifier(s)

ASA-2019-00077, CVE-2019-7742

Title

Browserside mime-type sniffing causes XSS attack vectors

Vendor(s)

Open Source Matters, Inc

Product(s)

Joomla

Affected version(s)

Joomla 1.0.0 through 3.9.2

Fixed version(s)

Joomla 3.9.3

Proof of concept

Unknown

Description

A combination of specific webserver configurations, in connection with specific file types and browserside mime-type sniffing causes a XSS attack vector.

Technical details

Unknown

Credits

Hanno Böck

Reference(s)

Security Announcements
https://developer.joomla.org/security-centre.html

CVE-2019-7742
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-7742

CVE-2019-7742
https://nvd.nist.gov/vuln/detail/CVE-2019-7742

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Last modified: February 13, 2019

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