Final Tiles Grid Gallery permits Contributor-level stored cross-site scripting

Image Photo Gallery Final Tiles Grid through 3.6.12 does not adequately sanitize and escape the delay shortcode attribute. A Contributor or higher can store script in page content, and the payload executes whenever a user opens the affected page.

CVE / CNA score 6.4 CVSS 3.1 · security@wordfence.com

NVD score Pending NVD has not published its own CVSS assessment.

Component: Image Photo Gallery Final Tiles Grid
Plugin slug: final-tiles-grid-gallery-lite
Affected: <= 3.6.12
Safe version: See mitigation notes
Published: Aug 22, 2026
Weakness: CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Aug 22, 2026 and is one of 7 known issues for this plugin.

What to do

Update, patch or deactivate.

No fixed release is identified for CVE-2026-4559. Update the gallery plugin when a release after 3.6.12 is confirmed to fix this issue; until then, restrict Contributor content or deactivate affected galleries when warranted. Review shortcode content and privileged sessions for injected scripts.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical 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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

References

Primary and upstream sources

Data attribution: This product uses the NVD API but is not endorsed or certified by the NVD.

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