---
id: "CVE-2026-116408"
kind: "vulnerability"
aliases: ["CVE-2026-116408"]
title: "WordPress Gallery PhotoBlocks plugin: stored XSS through version 1.3.7"
severity: "medium"
cvss: 6.5
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["package", "photoblocks-grid-gallery", "wordpress", "wp-plugin"]
not_affected_if: ["plugin-not-installed"]
published_at: "2026-10-26T18:17:44+00:00"
first_seen_at: "2026-10-26T18:31:44+00:00"
updated_at: "2026-10-26T18:33:54+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-116408", "first_seen_at": "2026-10-26T18:31:44+00:00"}]
---

# WordPress Gallery PhotoBlocks plugin: stored XSS through version 1.3.7

The Gallery PhotoBlocks WordPress plugin by WP Chill does not neutralize input when generating pages, allowing stored cross-site scripting. An attacker who can save content on the site can run script in the browsers of visitors or administrators who view it.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed version of the plugin `photoblocks-grid-gallery` in the WordPress admin under Plugins, or in `wp-content/plugins/photoblocks-grid-gallery/`
- Look for a version of `1.3.7` or earlier
- unknown whether the sources list a specific vulnerable input field

## Fix

- Update the plugin `photoblocks-grid-gallery` to a version later than `1.3.7`
- unknown whether a patched version number is published in the sources

## Timeline

- 2026-10-26T18:31:44+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-116408

## From the sources

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in WP Chill Gallery PhotoBlocks photoblocks-grid-gallery allows Stored XSS.This issue affects Gallery PhotoBlocks: from n/a through 1.3.7.

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