Bug 853409 (CVE-2012-4377)

Summary: CVE-2012-4377 mediawiki: Stored XSS via a File::link to a non-existing image
Product: [Other] Security Response Reporter: Jan Lieskovsky <jlieskov>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: axel.thimm, extras-orphan
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: mediawiki 1.19.2, mediawiki 1.18.5 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-10-19 21:56:19 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 853446    
Bug Blocks:    

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.

[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:

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: