Cross-site scripting in MediaWiki MediaWiki

1) Cross-site scripting

EUVDB-ID: #VU30554

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2013-4303

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data when processing data passed via the siprop parameter in a query action to wiki/api.php. A remote attacker can trick the victim to follow a specially crafted link 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.

Mitigation

Update to version 1.21.2.

Vulnerable software versions

MediaWiki: 1.21.0 - 1.21.1

CPE2.3

• cpe:2.3:a:mediawiki_org:mediawiki:1.21.1:*:*:*:*:*:*:*

External links

https://lists.wikimedia.org/pipermail/mediawiki-announce/2013-September/000133.html
https://seclists.org/oss-sec/2013/q3/553
https://www.securityfocus.com/bid/62194
https://bugzilla.wikimedia.org/show_bug.cgi?id=52746
https://exchange.xforce.ibmcloud.com/vulnerabilities/86897

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.