CVE-2026-107653

high

Description

The SureCart – Ecommerce Made Easy For Selling Physical Products, Digital Downloads, Subscriptions, Donations, & Payments plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 4.9.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful execution requires the injected comment to be visible on a page that loads SureCart's web-component bundle (e.g. a page containing a SureCart Buy Button block), and the comment must be auto-approved or approved by a moderator.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/2329870b-3285-4fb2-92d1-8107eb101dff?source=cve

https://plugins.trac.wordpress.org/changeset/3742278/surecart/trunk/app/src/BlockLibrary/BlockServiceProvider.php

https://plugins.trac.wordpress.org/browser/surecart/tags/4.9.2/dist/components/collection/components/controllers/confirmation/manual-instructions/sc-order-manual-instructions.js

https://plugins.trac.wordpress.org/browser/surecart/tags/4.9.2/app/src/Support/kses.json#L1263

https://plugins.trac.wordpress.org/browser/surecart/tags/4.9.2/app/src/BlockLibrary/BlockServiceProvider.php#L152

https://plugins.trac.wordpress.org/browser/surecart/tags/4.9.2/app/src/BlockLibrary/BlockServiceProvider.php#L100

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-114596

Details

Source: Mitre, NVD

Published: 2026-10-31

Updated: 2026-11-01

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 7.2

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

Severity: High

EPSS

EPSS: 0.0028