CVE-2026-76562

Deferred Deferred - Pending Action

Stored XSS in Sidebar Manager Light WordPress Plugin

Publication date: 2026-09-10

Last updated on: 2026-09-28

Assigner: Wordfence

Description

The Sidebar Manager Light plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'sbm_description' parameter in all versions up to, and including, 1.18 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-10

Last Modified

2026-09-28

Generated

2026-09-30

AI Q&A

2026-09-10

EPSS Evaluated

2026-09-29

NVD

CVE-2026-76562

EUVD

EUVD-2026-75242

Affected Vendors & Products

Vendor	Product	Version / Range
sidebar_manager_light	sidebar_manager_light	to 1.18 (inc)

Helpful Resources

Exploitability

CWE

KEV

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.

Attack-Flow Graph

Executive Summary

The Sidebar Manager Light plugin for WordPress has a stored cross-site scripting vulnerability. This occurs because the 'sbm_description' parameter does not properly sanitize or escape user input. Attackers can inject malicious scripts that execute when users view affected pages.

Detection Guidance

This vulnerability is specific to the Sidebar Manager Light WordPress plugin. To detect it, check if the plugin version is up to 1.18 or lower. Use WordPress admin to inspect installed plugins or run a command like 'wp plugin list' if using WP-CLI. Look for the Sidebar Manager Light plugin.

Impact Analysis

Unauthenticated attackers could inject scripts into your WordPress site. When users access the compromised pages, the scripts could steal cookies, session tokens, or sensitive data. It may also allow attackers to perform actions on behalf of users.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR's data protection requirements or HIPAA's safeguards for protected health information. Non-compliance may result in legal penalties or reputational damage.

Mitigation Strategies

Immediately update the Sidebar Manager Light plugin to the latest version if available. If no update exists, consider disabling or removing the plugin until a patch is released. Ensure input sanitization is enforced in WordPress configurations.

Hi! I’m here to help you understand CVE-2026-76562. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70