CVE-2016-6333 Cross-site scripting in n/a

What is CVE-2016-6333?

CVE-2016-6333 is a medium-severity cross-site scripting vulnerability in Mediawiki Mediawiki, published on 20 Apr 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

Cross-site scripting (XSS) vulnerability in the CSS user subpage preview feature in MediaWiki before 1.23.15, 1.26.x before 1.26.4, and 1.27.x before 1.27.1 allows remote attackers to inject arbitrary web script or HTML via the edit box in Special:MyPage/common.css.

Weakness: CWE-79

Which versions are affected by CVE-2016-6333?

It affects 1 product.

Products include Mediawiki Mediawiki.

How do I fix CVE-2016-6333?

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-2016-6333 being exploited?

There is no known exploitation of CVE-2016-6333 in the wild and no public exploit code.

Other vulnerabilities in Mediawiki Mediawiki

• CVE-2023-37303 Denial of service in n/a Critical 9.8
• CVE-2022-29904 SQL injection in n/a Critical 9.8
• CVE-2022-29906 Missing authorization in n/a Critical 9.8
• CVE-2022-28205 Business logic in n/a Critical 9.8
• CVE-2022-28206 Missing authorization in n/a Critical 9.8

All Mediawiki Mediawiki vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2016-6333, GHSA-hxwm-9f7g-wg4h.