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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
brechtvds Easy Image Collage
Default version status: unaffected
0 to ≤ 1.13.6affected
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 ↗