CVE-2011-1587 Cross-site scripting in n/a
Remote attackers can inject arbitrary web script or HTML via specially crafted uploaded files in MediaWiki when accessed by 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-2011-1587?
CVE-2011-1587 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 1.16.4, 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 located before a ? (question mark) in a query string, in conjunction with a modified URI path that has a %2E sequence in place of the . (dot) character. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-1578.
Weakness: CWE-79
Which versions are affected by CVE-2011-1587?
It affects 1 product.
Products include Mediawiki Mediawiki.
How do I fix CVE-2011-1587?
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-2011-1587 being exploited?
There is no known exploitation of CVE-2011-1587 in the wild and no public exploit code.
Other vulnerabilities in Mediawiki Mediawiki
Sources
Also known as DEBIAN-CVE-2011-1587, GHSA-28vc-7qpm-6gqr.