What the vulnerability does
01Description
The Easy Image Collage plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'grid[properties][borderColor]' and 'grid[images][N][attachment_url]' Parameters in all versions up to, and including, 1.13.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Because the data is stored via update_post_meta() rather than wp_insert_post() post content, WordPress's unfiltered_html restriction does not apply, meaning Authors cannot be blocked from this attack path by capability controls alone.
Explanation of Vulnerability in Simple Terms
02Summary
Easy Image Collage versions up to 1.13.6 contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. The vulnerability has a changed scope, meaning the impact can extend beyond the vulnerable component itself. An attacker with low-level user privileges can inject code that affects other users or site functionality.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers or affect site functionality.
Potential impact on your site
04Site Impact
Authenticated users can inject scripts affecting other visitors or site behavior; update the plugin immediately.
Conditions required to exploit
05Prerequisites
Attacker must have a low-level user account on the site; no user interaction required.
Key dates
06Disclosure timeline
June 10, 2026
CVE published
June 10, 2026
Record updated
