---
id: "CVE-2026-112845"
kind: "vulnerability"
aliases: ["CVE-2026-112845"]
title: "WordPress Off-Canvas Sidebars plugin: stored XSS through 0.5.9"
severity: "medium"
cvss: 6.5
epss: 0.0013
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["off-canvas-sidebars", "package", "self-hosted", "wordpress"]
not_affected_if: ["plugin-not-installed", "plugin-version-0.6-or-later"]
published_at: "2026-10-22T09:17:14+00:00"
first_seen_at: "2026-10-23T21:57:30+00:00"
updated_at: "2026-10-25T03:47:29+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112845", "first_seen_at": "2026-10-23T21:57:30+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-112845", "first_seen_at": "2026-10-24T07:15:52+00:00"}]
---

# WordPress Off-Canvas Sidebars plugin: stored XSS through 0.5.9

The Off-Canvas Sidebars & Menus (Slidebars) WordPress plugin does not neutralize input when generating pages, so stored cross-site scripting is possible. An attacker who can save content that the plugin renders can run script in other visitors' browsers, including administrators.

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

## How to check

- Check the installed plugin version in the WordPress admin under Plugins, or in `wp-content/plugins/off-canvas-sidebars/` header
- Confirm whether the plugin is active on the site

## Fix

- Update Off-Canvas Sidebars & Menus (Slidebars) to a version newer than `0.5.9`; the sources do not name the fixed version, so unknown
- If no fixed version is published, deactivate the plugin until it is

## Timeline

- 2026-10-23T21:57:30+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112845
- 2026-10-24T07:15:52+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-112845

## From the sources

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Jory Hogeveen Off-Canvas Sidebars & Menus (Slidebars) off-canvas-sidebars allows Stored XSS.This issue affects Off-Canvas Sidebars & Menus (Slidebars): from n/a through 0.5.9.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_