PT-2026-43524 · Neilmccutcheon · Instant-Quote.Co Quotation Page

Dj + 1 · Published 2026-05-27 · Updated 2026-06-04 · CVE-2026-8884

NVD

CVSS v3.1

6.4

Medium

Base vector

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

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.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-8884

Affected Products

Instant-Quote.Co Quotation Page

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-8884 · Security Note
• https://wordfence.com/threat-intel/vulnerabilities/id/f7140053-a3c3-44c4-bc83-2e9b9e8853d6?source=cve · Note
• https://reddit.com/r/StopBadBots/comments/1twww49/insane_record_145_wordpress_plugins_exposed_with · Reddit Post
• https://plugins.trac.wordpress.org/browser/iq-quotation-page/trunk/IQ-quotation-page.php#L339 · Note
• https://plugins.trac.wordpress.org/browser/iq-quotation-page/trunk/IQ-quotation-page.php#L429 · Note