CVE-2015-4337

Backup, Restore and Migrate WordPress Sites With the XCloner Plugin <= 3.1.2 - Cross-Site Scripting

2015-05-10 00:00
Larry W. Cashdollar

Strategic Overview

Status
Patched in 3.1.3
Affected Plugin
Backup, Restore and Migrate your sites with XCloner
Affected Version
<= 3.1.2
CVSS
6.1Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2015-4337
View all Backup, Restore and Migrate your sites with XCloner vulnerabilities

At a glance

CVE-2015-4337 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Backup, Restore and Migrate your sites with XCloner WordPress plugin, affecting versions <= 3.1.2. It carries a CVSS score of 6.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 3.1.3; sites on affected versions should update now. Disclosed May 2015, reported by Larry W. Cashdollar.

Vulnerability Overview

Cross-site scripting (XSS) vulnerability in the XCloner plugin 3.1.2 for WordPress allows remote authenticated users to inject arbitrary web script or HTML via the excl_manual parameter in the xcloner_show page to wpadmin/plugins.php.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in Backup, Restore and Migrate your sites with XCloner <= 3.1.2 takes a caller who can reach the endpoint. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For Backup, Restore and Migrate your sites with XCloner the fix is 3.1.3: builds <= 3.1.2 are affected, anything from 3.1.3 onward is not.

Remediation

Update to version 3.1.3, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Backup, Restore and Migrate your sites with XCloner: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Backup, Restore and Migrate your sites with XCloner 3.1.3 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2015-4337https://www.wordfence.com/threat-intel/vulnerabilities/id/f06008c0-0ce3-4d78-934e-2a7fa5ce4e98https://nvd.nist.gov/vuln/detail/CVE-2015-4337

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C