CVE-2026-5340
The Fancy Image Show plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `fancy-img-show` shortcode in all versions up to, and including, 9.1 due to insufficient input sanitization and output escaping on user supplied attributes. 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.
- Score
- CVSS 3.1 6.4 Medium
- Status
- Deferred - security@wordfence.com
- Published
- 2026-05-12
- Last modified
- 2026-05-12
- Weaknesses
- CWE-79
Affected products
References
- https://plugins.trac.wordpress.org/browser/fancy-image-show/tags/9.1/fancy-image-show.php#L117
- https://plugins.trac.wordpress.org/browser/fancy-image-show/tags/9.1/fancy-image-show.php#L178
- https://plugins.trac.wordpress.org/browser/fancy-image-show/trunk/fancy-image-show.php#L178
- https://www.wordfence.com/threat-intel/vulnerabilities/id/131d07ad-4e87-4137-a5df-2b74db1e9ae8?source=cve
