CVE-2012-1582 Cross-site scripting in n/a
Remote attackers can inject arbitrary web script or HTML into MediaWiki pages via crafted strip item markers, potentially leading to session hijacking or malicious actions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2012-1582?
CVE-2012-1582 is a medium-severity cross-site scripting vulnerability in Mediawiki Mediawiki, published on 9 Sep 2012. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Cross-site scripting (XSS) vulnerability in the wikitext parser in MediaWiki 1.17.x before 1.17.3 and 1.18.x before 1.18.2 allows remote attackers to inject arbitrary web script or HTML via a crafted page with "forged strip item markers," as demonstrated using the CharInsert extension.
Weakness: CWE-79
Which versions are affected by CVE-2012-1582?
It affects 1 product.
Products include Mediawiki Mediawiki.
How do I fix CVE-2012-1582?
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-2012-1582 being exploited?
There is no known exploitation of CVE-2012-1582 in the wild and no public exploit code.
Other vulnerabilities in Mediawiki Mediawiki
Sources
Also known as DEBIAN-CVE-2012-1582, GHSA-jqh5-w95m-3mpg.