#VU7286 Stored cross-site scripting in MediaWiki - CVE-2017-0372
Published: April 29, 2017 / Updated: September 14, 2018
Vulnerability identifier: #VU7286
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:A/U:Clear
CVE-ID: CVE-2017-0372
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
MediaWiki
MediaWiki
Software vendor:
MediaWiki.org
MediaWiki.org
Description
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data within the SyntaxHighlight_GeSHi extension. A remote attacker can create a specially crafted page with XSS exploit, trick the victim to visit it and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Remediation
Update to version 1.27.3 or 1.28.2.