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WordPress Checkout Files Upload for WooCommerce plugin <= 2.4.0 - Cross Site Scripting (XSS) vulnerability

7.1HighCNA
Exploited
No known exploitation
Fix
Fixed in 2.4.1
Who is exposed
Specific setups only

Do first: Upgrade to a fixed version: 2.4.1.

Published
Last modified
19/100 · provisional
Specific setups only
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

The Checkout Files Upload for WooCommerce WordPress plugin contains a stored cross-site scripting flaw that lets an attacker plant malicious scripts in pages. The attacker can reach it remotely without logging in, but a user must take an action, such as opening a crafted page, before the script runs.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

Read the original description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WP Wham Checkout Files Upload for WooCommerce checkout-files-upload-woocommerce allows Stored XSS.This issue affects Checkout Files Upload for WooCommerce: from n/a through 2.4.0.

cve.now Index

19Pcve.now Index 19 of 100 · methodology v3 · provisional
  • Exploitation0/40No signal
  • Exposure12/25Specific setups only, reachable over the network without a login
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity7.1/10CVSS 7.1
  • No patch0/5No signal

What would change the score

  • Would score about 69 if added to CISA KEV
  • Would score about 64 if CISA's SSVC rates exploitation active

What to do

  • Upgrade to a fixed version: 2.4.1.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  4. Record last updated

Affected versions

  • checkout-files-upload-woocommerce

    through 2.4.0

Evidence 1

  1. Link

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

Questions about CVE-2026-123463

Is CVE-2026-123463 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data

What does this mean?

This is a stored cross-site scripting bug. Attackers can inject malicious scripts into the site, which can steal visitor data or hijack accounts.Source: patchstack.com, cve.org

Which versions are affected by CVE-2026-123463?

checkout-files-upload-woocommerce: through 2.4.0.Source: cve.now feed data

Am I affected, and how do I check?

All versions up to and including 2.4.0 of the Checkout Files Upload for WooCommerce plugin by WP Wham are in the affected range. To check, look at the plugin version shown on the WordPress Plugins page.Source: patchstack.com, cve.org

How do I fix CVE-2026-123463?

Update the plugin to version 2.4.1 or later.Source: patchstack.com, cve.org