CVE-2026-8884

The Instant-Quote.co Quotation Page plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Shortcode Attributes in all versions up to, and including, 1.3.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. A Contributor-level user can trigger execution against higher-privileged users by embedding the malicious shortcode in a post submitted for review, causing the injected scripts to execute when an administrator previews or views the post.

Score

CVSS 3.1 6.4 Medium

Status

Deferred - security@wordfence.com

Published

2026-05-27

Last modified

2026-05-27

Weaknesses

CWE-79

Affected products

• Instant-quote.co Quotation Page (Neilmccutcheon)

References

• https://plugins.trac.wordpress.org/browser/iq-quotation-page/trunk/IQ-quotation-page.php#L339
• https://plugins.trac.wordpress.org/browser/iq-quotation-page/trunk/IQ-quotation-page.php#L429
• https://www.wordfence.com/threat-intel/vulnerabilities/id/f7140053-a3c3-44c4-bc83-2e9b9e8853d6?source=cve