CVE-2013-4303 - CVE House

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Status published Medium CVE-2013-4303

includes/libs/IEUrlExtension.php in the MediaWiki API in MediaWiki 1.19.x before 1.19.8,...

6.1 CVSS

Vulnerability Description

includes/libs/IEUrlExtension.php in the MediaWiki API in MediaWiki 1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x before 1.21.2 does not properly detect extensions when there are an even number of "." (period) characters in a string, which allows remote attackers to conduct cross-site scripting (XSS) attacks via the siprop parameter in a query action to wiki/api.php.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from Wikimedia Foundation

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TitleIcon: Stored Cross-Site Scripting (XSS) via #titleicon_unicode parser function

MsUpload: Stored Cross-Site Scripting (XSS) via unsanitized msu-continue system message

Stored XSS in Quiz

Stored XSS in UrlShortener

Autoblocks from global account suppressions are publicly visible

Affected Vendor

Wikimedia Foundation

View all reports →

Affected Software

MediaWiki

Vulnerable Versions:

1.19.x before 1.19.8, 1.20.x before 1.20.7, and 1.21.x before 1.21.2

Timeline

Official Publish: December 11th, 2019

Last Modified: August 6th, 2024

Added to House: July 19th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.