Vulnerability CVE-2019-12471
Published: 2019-07-10

Description:
Wikimedia MediaWiki 1.30.0 through 1.32.1 has XSS. Loading user JavaScript from a non-existent account allows anyone to create the account, and perform XSS on users loading that script. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.

Type:

CWE-79

 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Mediawiki -> Mediawiki 
Debian -> Debian linux 

 References:
https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html
https://phabricator.wikimedia.org/T207603
https://seclists.org/bugtraq/2019/Jun/12
https://www.debian.org/security/2019/dsa-4460
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