CVE-2017-8811 Cross-site scripting in MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2
Attackers can perform HTML mangling attacks via raw message parameter expansion in MediaWiki, potentially leading to script injection or content manipulation.
- 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-2017-8811?
CVE-2017-8811 is a medium-severity cross-site scripting vulnerability in Debian Debian Linux, published on 15 Nov 2017. 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
The implementation of raw message parameter expansion in MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 allows HTML mangling attacks.
Weakness: CWE-20
Which versions are affected by CVE-2017-8811?
It affects 2 products.
Products include Debian Debian Linux, Mediawiki Mediawiki.
How do I fix CVE-2017-8811?
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-2017-8811 being exploited?
There is no known exploitation of CVE-2017-8811 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2017-8811, GHSA-6mj9-2x5g-w3f6.