Cross-site scripting (XSS) vulnerability in Joomla! 2.5.x before 2.5.10 and 3.0.x before 3.0.4 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

According to its self-identified version number, the Joomla! installation hosted on the remote web server is 2.5.x prior to 2.5.10 or 3.0.x prior to 3.0.4. It is, therefore, affected by multiple vulnerabilities :

  - A security bypass vulnerability exists due to a failure     to properly verify permissions before deleting private     messages. An authenticated, remote attacker can     exploit this to delete arbitrary private messages.
    (CVE-2013-3056)

  - An information disclosure vulnerability exists due to     improper verification of permissions when viewing     permission settings. An authenticated, remote attacker     can exploit this to disclose restricted permission     settings. (CVE-2013-3057)

  - An unspecified cross-site scripting (XSS) vulnerability     exists due to improper validation of user-supplied     input. An unauthenticated, remote attacker can exploit     this, via a specially crafted request, to execute     arbitrary script code in a user's browser session.
    (CVE-2013-3058)

  - A cross-site scripting vulnerability (XSS) exists in the     Voting plugin due to improper validation of     user-supplied input. An unauthenticated, remote attacker     can exploit this, via a specially crafted request, to     execute arbitrary script code in a user's browser     session. (CVE-2013-3059)

  - A flaw exists in the remember.php script due to     improper sanitization of input passed via a cookie     parameter before being used in an unserialize() call.
    An authenticated, remote attacker can exploit this     to unserialize arbitrary PHP objects, resulting in a     denial of service condition or a PHP object injection     attack. (CVE-2013-3242)

  - A cross-site scripting (XSS) vulnerability exists in the     Highlighter plugin due to improper validation of     user-supplied input. An unauthenticated, remote attacker     can exploit this, via a specially crafted request, to     execute arbitrary script code in a user's browser     session. (CVE-2013-3267)

  - A cross-site scripting (XSS) vulnerability exists in the     Flash-Based File Uploader due to improper validation of     user-supplied input. An unauthenticated, remote attacker     can exploit this, via a specially crafted request, to     execute arbitrary script code in a user's browser     session.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The JSST and the Joomla! Security Center report : [20130405] - Core - XSS Vulnerability Inadequate filtering leads to XSS vulnerability in Voting plugin. [20130403] - Core - XSS Vulnerability Inadequate filtering allows possibility of XSS exploit in some circumstances.
[20130402] - Core - Information Disclosure Inadequate permission checking allows unauthorised user to see permission settings in some circumstances. [20130404] - Core - XSS Vulnerability Use of old version of Flash-based file uploader leads to XSS vulnerability.
[20130401] - Core - Privilege Escalation Inadequate permission checking allows unauthorised user to delete private messages.
[20130406] - Core - DOS Vulnerability Object unserialize method leads to possible denial of service vulnerability. [20130407] - Core - XSS Vulnerability Inadequate filtering leads to XSS vulnerability in highlighter plugin

ID	Name	Product	Family	Severity
66389	Joomla! 2.5.x < 2.5.10 / 3.0.x < 3.0.4 Multiple Vulnerabilities	Nessus	CGI abuses	medium
66250	FreeBSD : Joomla! -- XXS and DDoS vulnerabilities (57df803e-af34-11e2-8d62-6cf0490a8c18)	Nessus	FreeBSD Local Security Checks	medium

Detections

Analytics

CVE-2013-3058

medium

Tenable Plugins

medium

medium