CVE-2017-8808 Cross-site scripting in MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2
Cross-site scripting vulnerability in MediaWiki allows attackers to execute arbitrary scripts via non-standard URL escaping, potentially leading to session hijacking or code execution.
- 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-2017-8808?
CVE-2017-8808 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
MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 has XSS when the $wgShowExceptionDetails setting is false and the browser sends non-standard URL escaping.
Weakness: CWE-79
Which versions are affected by CVE-2017-8808?
It affects 2 products.
Products include Debian Debian Linux, Mediawiki Mediawiki.
How do I fix CVE-2017-8808?
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-2017-8808 being exploited?
There is no known exploitation of CVE-2017-8808 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2017-8808, GHSA-82j7-474r-g29g.