CVE-2011-1578 Cross-site scripting in n/a

Medium 4.3 Published Updated

Remote attackers can inject arbitrary web script or HTML via crafted file uploads in MediaWiki, requiring user interaction with Internet Explorer 6 or earlier.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2011-1578?

CVE-2011-1578 is a medium-severity cross-site scripting vulnerability in Mediawiki Mediawiki, published on 27 Apr 2011. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Cross-site scripting (XSS) vulnerability in MediaWiki before 1.16.3, when Internet Explorer 6 or earlier is used, allows remote attackers to inject arbitrary web script or HTML via an uploaded file accessed with a dangerous extension such as .html at the end of the query string, in conjunction with a modified URI path that has a %2E sequence in place of the . (dot) character.

Weakness: CWE-79

Which versions are affected by CVE-2011-1578?

It affects 1 product.

Products include Mediawiki Mediawiki.

How do I fix CVE-2011-1578?

Upgrade to a fixed version.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2011-1578 being exploited?

There is no known exploitation of CVE-2011-1578 in the wild and no public exploit code.

All Mediawiki Mediawiki vulnerabilities

Sources

Also known as DEBIAN-CVE-2011-1578, GHSA-84xm-3937-g9jm.

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