What’s Vulnerable › Vulnerabilities

CVE-2026-8884: Instant-Quote.co Quotation Page <= 1.3.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-27 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• neilmccutcheon Instant-Quote.co Quotation Page: through 1.3.4

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

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