PT-2017-18543 · Wikimedia+1 · Mediawiki+1

Published 2017-11-15 · Updated 2017-12-11 · CVE-2017-8808

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions MediaWiki versions prior to 1.27.4 MediaWiki versions 1.28.x prior to 1.28.3 MediaWiki versions 1.29.x prior to 1.29.2

Description The issue occurs when the $wgShowExceptionDetails setting is false and the browser sends non-standard URL escaping, leading to XSS.

Recommendations For MediaWiki versions prior to 1.27.4, update to version 1.27.4 or later. For MediaWiki versions 1.28.x prior to 1.28.3, update to version 1.28.3 or later. For MediaWiki versions 1.29.x prior to 1.29.2, update to version 1.29.2 or later.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

ALT-PU-2017-2786

CVE-2017-8808

DSA-4036-1

MGASA-2017-0429

Affected Products

Alt Linux

Mediawiki

References · 26

• 🔥 https://github.com/motikan2010/CVE-2017-8809_MediaWiki_RFD · Exploit
• https://security-tracker.debian.org/tracker/source-package/mediawiki · Vendor Advisory
• https://bdu.fstec.ru/vul/2018-00062 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8812 · Security Note
• https://advisories.mageia.org/MGASA-2017-0429.html · Security Note
• https://osv.dev/vulnerability/MGASA-2017-0429 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8808 · Security Note
• https://debian.org/security/2017/dsa-4036 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8810 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8811 · Security Note
• https://security-tracker.debian.org/tracker/DSA-4036-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8815 · Security Note
• https://lists.wikimedia.org/pipermail/mediawiki-announce/2017-November/000216.html · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8814 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8809 · Security Note