Bug 853409 (CVE-2012-4377) - CVE-2012-4377 mediawiki: Stored XSS via a File::link to a non-existing image
Summary: CVE-2012-4377 mediawiki: Stored XSS via a File::link to a non-existing image
Status: NEW
Alias: CVE-2012-4377
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=moderate,public=20120830,repor...
Keywords: Security
Depends On: 853446
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-08-31 12:46 UTC by Jan Lieskovsky
Modified: 2019-06-08 19:14 UTC (History)
2 users (show)

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Clone Of:
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Last Closed:


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Description Jan Lieskovsky 2012-08-31 12:46:32 UTC
A stored cross-site scripting (XSS) flaw was found in the way MediaWiki, a wiki engine, sanitized comments when a File::link tag to an non-existent image was rendered. A remote attacker could provide a specially-crafted URL that, when visited would lead to arbitrary HTML or web script injection.

References:
[1] http://www.gossamer-threads.com/lists/wiki/mediawiki/295767

Upstream bug:
[2] https://bugzilla.wikimedia.org/show_bug.cgi?id=39700

Upstream patch against the 1.19 version:
[3] https://bugzilla.wikimedia.org/show_bug.cgi?id=39700#c11

Upstream patch against the 1.18 version:
[4] https://bugzilla.wikimedia.org/show_bug.cgi?id=39700#c12

Comment 1 Jan Lieskovsky 2012-08-31 12:48:36 UTC
This issue affects the versions of the mediawiki package, as shipped with Fedora release of 16 and 17. Please schedule an update.

--

This issue did NOT affect the version of the mediawiki package, as shipped with Fedora EPEL 5.

Comment 2 Jan Lieskovsky 2012-08-31 14:37:08 UTC
CVE request:
http://www.openwall.com/lists/oss-security/2012/08/31/6

Comment 3 Jan Lieskovsky 2012-08-31 14:39:35 UTC
Created mediawiki tracking bugs for this issue

Affects: fedora-all [bug 853446]

Comment 4 Jan Lieskovsky 2012-09-03 08:23:22 UTC
The CVE identifier of CVE-2012-4377 has been assigned to this issue:
http://www.openwall.com/lists/oss-security/2012/08/31/10


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