CVE-2013-4568 Cross-site scripting in n/a
Remote attackers can execute arbitrary scripts in victim browsers via crafted CSS, potentially leading to session hijacking or data theft.
- 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-2013-4568?
CVE-2013-4568 is a medium-severity cross-site scripting vulnerability in Mediawiki Mediawiki, published on 13 Dec 2013. 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
Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows remote attackers to conduct cross-site scripting (XSS) attacks via certain non-ASCII characters in CSS, as demonstrated using variations of "expression" containing (1) full width characters or (2) IPA extensions, which are converted and rendered by Internet Explorer.
Which versions are affected by CVE-2013-4568?
It affects 1 product.
Products include Mediawiki Mediawiki.
How do I fix CVE-2013-4568?
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-2013-4568 being exploited?
There is no known exploitation of CVE-2013-4568 in the wild and no public exploit code.
Other vulnerabilities in Mediawiki Mediawiki
Sources
Also known as DEBIAN-CVE-2013-4568, GHSA-gx65-cr9q-7fgc.