CVE-2023-1839

PPOM for WooCommerce <= 32.0.5 - Authenticated (Administrator+) Stored Cross-Site Scripting via plugin settings

2023-05-02 00:00
Suprit S Pandurangi

Strategic Overview

Status
Patched in 32.0.6
Affected Plugin
PPOM – Product Addons & Custom Fields for WooCommerce
Affected Version
< 32.0.6
CVSS
4.4Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2023-1839
View all PPOM – Product Addons & Custom Fields for WooCommerce vulnerabilities

At a glance

CVE-2023-1839 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the PPOM WordPress plugin, affecting versions < 32.0.6. It carries a CVSS score of 4.4 (reachable over the network). Exploitation requires an authenticated account at Administrator level or above. The issue is fixed in version 32.0.6; sites on affected versions should update now. Disclosed May 2023, reported by Suprit S Pandurangi.

Vulnerability Overview

The PPOM for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin settings in versions up to and including 32.0.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only impacts multi-site installations and installations where unfiltered_html has been disabled.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, and no interaction from a victim user.

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

Reaching this weakness in PPOM < 32.0.6 takes an account at Administrator level or above. 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 32.0.6: builds < 32.0.6 are affected, anything from 32.0.6 onward is not.

Remediation

Update to version 32.0.6, or a newer patched version

How does WordSec protect against this?

An attacker needs Administrator access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: PPOM 32.0.6 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-1839https://www.wordfence.com/threat-intel/vulnerabilities/id/8f105002-a19a-4376-af65-7e9416175174https://nvd.nist.gov/vuln/detail/CVE-2023-1839

Related records

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