CVE-2019-14948

PPOM for WooCommerce <= 18.3 - Authenticated Stored Cross-Site Scripting

2019-08-10 00:00

Strategic Overview

Status: Patched in 18.4
Affected Plugin: PPOM – Product Addons & Custom Fields for WooCommerce
Affected Version: < 18.4
CVSS: 5.4Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2019-14948

View all PPOM – Product Addons & Custom Fields for WooCommerce vulnerabilities

At a glance

CVE-2019-14948 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the PPOM WordPress plugin, affecting versions < 18.4. 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 18.4; sites on affected versions should update now. Disclosed August 2019.

Vulnerability Overview

The woocommerce-product-addon plugin before 18.4 for WordPress has XSS via an import of a new meta data structure.

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 PPOM < 18.4 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 PPOM the fix is 18.4: builds < 18.4 are affected, anything from 18.4 onward is not.

Remediation

Update to version 18.4, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to PPOM: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: PPOM 18.4 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2019-14948 https://www.wordfence.com/threat-intel/vulnerabilities/id/b84c0f8c-25a7-47c7-93cf-9b5060c07c72 https://nvd.nist.gov/vuln/detail/CVE-2019-14948

Related records

Same weakness class

Other vulnerabilities in PPOM – Product Addons & Custom Fields for WooCommerce

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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