CVE-2026-8884 — Instant-Quote.co Quotation Page <= 1.3.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
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…
Published: 2026-05-27 · CVSS: 6.4 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7