CVE-2015-4063

NewStatPress <= 0.9.8 - Authenticated Cross-Site Scripting

2015-05-25 00:00

Strategic Overview

Status: Patched in 0.9.9
Affected Plugin: NewStatPress
Affected Version: <= 0.9.8
CVSS: 5.4Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2015-4063

At a glance

CVE-2015-4063 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the NewStatPress WordPress plugin, affecting versions <= 0.9.8. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account. The issue is fixed in version 0.9.9; sites on affected versions should update now. Disclosed May 2015, reported by Adrián M. F..

Vulnerability Overview

Cross-site scripting (XSS) vulnerability in includes/nsp_search.php in the NewStatPress plugin before 0.9.9 for WordPress allows remote authenticated users to inject arbitrary web script or HTML via the where1 parameter in the nsp_search page to wp-admin/admin.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.

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

Reaching this weakness in NewStatPress <= 0.9.8 takes any authenticated account. 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 NewStatPress the fix is 0.9.9: builds <= 0.9.8 are affected, anything from 0.9.9 onward is not.

Remediation

Update to version 0.9.9, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to NewStatPress: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: NewStatPress 0.9.9 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2015-4063 https://www.wordfence.com/threat-intel/vulnerabilities/id/a8292a1f-1d26-4efa-9ead-5309965bdb8c https://nvd.nist.gov/vuln/detail/CVE-2015-4063

Related records

Same weakness class

Other vulnerabilities in NewStatPress

CVSS Vector

5.4

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionRequired
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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