CVE-2019-15778

Additional Variation Images Gallery for WooCommerce <= 1.1.28 - Authenticated Stored Cross-Site Scripting

2019-08-20 00:00

Strategic Overview

Status: Patched in 1.2.29
Affected Plugin: Additional Variation Images Gallery for WooCommerce
Affected Version: < 1.1.29
CVSS: 6.4Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2019-15778

View all Additional Variation Images Gallery for WooCommerce vulnerabilities

At a glance

CVE-2019-15778 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Additional Variation Images Gallery for WooCommerce WordPress plugin, affecting versions < 1.1.29. It carries a CVSS score of 6.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account. The issue is fixed in version 1.2.29; sites on affected versions should update now. Disclosed August 2019.

Vulnerability Overview

The woo-variation-gallery plugin before 1.1.29 for WordPress has XSS.

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 interaction from a victim user.

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

Reaching this weakness in Additional Variation Images Gallery for WooCommerce < 1.1.29 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 Additional Variation Images Gallery for WooCommerce the fix is 1.2.29: builds < 1.1.29 are affected, anything from 1.2.29 onward is not.

Remediation

Update to version 1.2.29, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Additional Variation Images Gallery for WooCommerce: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Additional Variation Images Gallery for WooCommerce 1.2.29 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2019-15778 https://www.wordfence.com/threat-intel/vulnerabilities/id/76e46759-ff83-4a6b-b510-28965c88bb94 https://nvd.nist.gov/vuln/detail/CVE-2019-15778

CVSS Vector

6.4

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

Base

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

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