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TITLE:
Joomla! Newsletter Subscriber Plugin URL Cross-Site Scripting
Vulnerability

SECUNIA ADVISORY ID:
SA45118

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/45118/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=45118

RELEASE DATE:
2011-07-05

DISCUSS ADVISORY:
http://secunia.com/advisories/45118/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/45118/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=45118

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A vulnerability has been reported in the Newsletter Subscriber plugin
for Joomla!, which can be exploited by malicious people to conduct
cross-site scripting attacks.

Input appended to the URL after index.php when viewing pages using
the plugin is not properly sanitised in newsletter_subscriber.php
before being returned to the user. This can be exploited to execute
arbitrary HTML and script code in a user's browser session in context
of an affected site.

Successful exploitation may require that the victim is running
Internet Explorer or Konqueror.

The vulnerability is reported in version 1.3 for Joomla! 1.5 and
version 1.2 for Joomla! 1.6. Prior versions may also be affected.

SOLUTION:
Update to version 1.3 for Joomla! 1.5 (released July 1st, 2011) or
version 1.2 for Joomla! 1.6 (released June 30th, 2011).

PROVIDED AND/OR DISCOVERED BY:
Reported by the Joomla! VEL team.

ORIGINAL ADVISORY:
http://docs.joomla.org/Vulnerable_Extensions_List#Newsletter_Subscriber

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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Definitions: (Criticality, Where etc.)
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Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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