CVE-2018-5366

WPGlobus – Multilingual Everything! <= 1.9.6 - Cross-Site Scripting via wpglobus_option[more_languages]

2018-01-11 00:00

Strategic Overview

Status: Patched in 1.9.7
Affected Plugin: WPGlobus
Affected Version: <= 1.9.6
CVSS: 4.8Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2018-5366

At a glance

CVE-2018-5366 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the WPGlobus WordPress plugin, affecting versions <= 1.9.6. It carries a CVSS score of 4.8 (reachable over the network; low attack complexity). The issue is fixed in version 1.9.7; sites on affected versions should update now. Disclosed January 2018, reported by d4wner.

Vulnerability Overview

The WPGlobus plugin 1.9.6 for WordPress has XSS via the wpglobus_option[more_languages] parameter to wp-admin/options.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 WPGlobus <= 1.9.6 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 WPGlobus the fix is 1.9.7: builds <= 1.9.6 are affected, anything from 1.9.7 onward is not.

Remediation

Update to version 1.9.7, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to WPGlobus: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: WPGlobus 1.9.7 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2018-5366 https://www.wordfence.com/threat-intel/vulnerabilities/id/76b11177-782a-4d9c-a974-4cb9ff55fa99 https://nvd.nist.gov/vuln/detail/CVE-2018-5366

Related records

Same weakness class

Other vulnerabilities in WPGlobus

CVSS Vector

4.8

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

Base

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

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