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.

CVSS v3 6.4 MEDIUM

6.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.1 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
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

Configurations

No configuration.

History

No history.

Information

Published : 2026-05-12 09:16

Updated : 2026-06-17 10:58

NVD link : CVE-2026-5340

Mitre link : CVE-2026-5340

CVE.ORG link : CVE-2026-5340

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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