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CVE-2023-4160

17
FAUCET Score

CVE-2023-4160 affects the WooCommerce PDF Invoice Builder plugin for WordPress, specifically versions up to and including 1.2.90. It is a Stored Cross-Site Scripting (XSS) vulnerability stemming from insufficient input sanitization in admin settings. This allows authenticated administrators to inject malicious web scripts that execute when other users view affected pages, primarily impacting multi-site installations or those with unfiltered_html disabled. The vulnerability has a CVSS score of 4.8 (Medium), indicating a network-based attack requiring high privileges and user interaction, with potential for low impact on confidentiality and integrity. Its low EPSS score and FAUCET Risk Score suggest a low probability of exploitation in the wild. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.2.90CPE matchmatch criteria
cpe:2.3:a:rednao:woocommerce_pdf_invoice_builder:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

4.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.41%
Probability of exploitation in next 30 days
EPSS Percentile
33.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0041 is in the 49th percentile among its peer group of 4,937 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

plugins.trac.wordpress.org / browser/woo-pdf-invoice-builder/trunk/woocommerce-pdf-invoice-ajax.php
Patch
plugins.trac.wordpress.org / changeset
Patch
wordfence.com / threat-intel/vulnerabilities/id/6a765360-8603-4ba1-a6db-dd0175ff3ddf
Third Party Advisory