CVE-2026-4559
Received Received - Intake

Stored XSS in Image Photo Gallery Final Tiles Grid WordPress Plugin

Publication date: 2026-08-22

Last updated on: 2026-08-22

Assigner: Wordfence

Description
The Image Photo Gallery Final Tiles Grid plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'delay' shortcode attribute in all versions up to, and including, 3.6.12 due to insufficient input sanitization and output escaping. 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.

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Meta Information

Published
2026-08-22
Last Modified
2026-08-22
Generated
2026-08-22
AI Q&A
2026-08-22
EPSS Evaluated
N/A
NVD
CVE-2026-4559
EUVD
EUVD-2026-64297

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
final_tiles_grid final_tiles_grid to 3.6.12 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This vulnerability is a Stored Cross-Site Scripting (XSS) flaw in the Image Photo Gallery Final Tiles Grid WordPress plugin. It allows authenticated attackers with Contributor-level access or higher to inject malicious scripts via the 'delay' shortcode attribute. The issue arises due to insufficient input sanitization and output escaping.

Detection Guidance

To detect this vulnerability, inspect WordPress sites using the Image Photo Gallery Final Tiles Grid plugin versions up to 3.6.12. Check for malicious scripts in pages using the 'delay' shortcode attribute. Review server logs for unusual script injections or unauthorized page modifications.

Impact Analysis

An attacker could inject malicious scripts into pages. When users access these pages, the scripts execute, potentially stealing cookies, session tokens, or other sensitive data. This could lead to account takeovers or unauthorized actions on behalf of the user.

Compliance Impact

This vulnerability could lead to data breaches, compromising personal or sensitive data. Such breaches may violate GDPR (data protection) and HIPAA (health information privacy) requirements, potentially resulting in legal penalties, fines, or reputational damage.

Mitigation Strategies
  • Update the Image Photo Gallery Final Tiles Grid plugin to the latest version beyond 3.6.12.
  • Remove or disable the plugin if updates are unavailable or if suspicious activity is detected.
  • Scan WordPress installations for unauthorized script injections or modified pages.
  • Restrict Contributor-level and higher user roles to minimize attack surface.

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