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.

Project Subscriptions

Vendors Products
Neilmccutcheon Subscribe
Instant-quote.co Quotation Page Subscribe
Wordpress Subscribe
Wordpress Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 27 May 2026 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Neilmccutcheon
Neilmccutcheon instant-quote.co Quotation Page
Wordpress
Wordpress wordpress
Vendors & Products Neilmccutcheon
Neilmccutcheon instant-quote.co Quotation Page
Wordpress
Wordpress wordpress

Wed, 27 May 2026 06:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Instant-Quote.co Quotation Page <= 1.3.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-05-27T10:30:49.935Z

Reserved: 2026-05-18T20:34:29.934Z

Link: CVE-2026-8884

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-27T07:16:17.250

Modified: 2026-05-27T07:16:17.250

Link: CVE-2026-8884

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-27T10:06:44Z

Weaknesses