CVE-2024-0957Network attack vector

Unauthenticated stored XSS via customer notes

Published Mar 22, 2024 · Updated Apr 8, 2026

Stored XSS in WebToffee's WooCommerce PDF Invoices plugin 4.4.1 and earlier allows remote attackers to inject scripts via customer notes. The plugin stores customer-note input without sufficient sanitization and renders it in printable invoice output without adequate escaping. No authentication is required to submit the note, but execution occurs only when a user opens the affected invoice for printing, exposing that user's browser session to script actions.

CVSS severity6.1
Medium
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in WebToffee's WooCommerce PDF Invoices plugin 4.4.1 and earlier allows remote attackers to inject scripts via customer notes. The plugin stores customer-note input without sufficient sanitization and renders it in printable invoice output without adequate escaping. No authentication is required to submit the note, but execution occurs only when a user opens the affected invoice for printing, exposing that user's browser session to script actions.

The record

CVE
CVE-2024-0957
Published
Mar 22, 2024
Updated
Apr 8, 2026
Vendor
WebToffee
Product
WebToffee WooCommerce PDF Invoices, Packing Slips, Delivery Notes & Shipping Labels
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 22, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=4.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WebToffee · WebToffee WooCommerce PDF Invoices, Packing Slips, Delivery Notes & Shipping Labelsversion=0 <=4.4.1

Published CVSS scores

6.1WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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