CVE-2025-13740
Unknown Unknown - Not Provided

Stored XSS in Lightweight Accordion WordPress Plugin Allows Script Injection

Publication date: 2025-12-15

Last updated on: 2025-12-15

Assigner: Wordfence

Description
The Lightweight Accordion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `lightweight-accordion` shortcode in all versions up to, and including, 1.5.20 due to insufficient input sanitization and output escaping on user supplied attributes. 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
2025-12-15
Last Modified
2025-12-15
Generated
2026-07-06
AI Q&A
2025-12-15
EPSS Evaluated
2026-07-05
NVD
CVE-2025-13740
EUVD
EUVD-2025-203329

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wordpress lightweight_accordion 1.5.20

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

The Lightweight Accordion plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in its `lightweight-accordion` shortcode in all versions up to 1.5.20. This vulnerability arises because the plugin does not properly sanitize or escape user-supplied attributes. As a result, authenticated users with contributor-level access or higher can inject malicious scripts into pages. These scripts execute whenever any user views the infected page.

Impact Analysis

This vulnerability can allow attackers with contributor-level access or above to inject arbitrary web scripts into pages. When other users access these pages, the malicious scripts execute in their browsers, potentially leading to theft of user credentials, session hijacking, defacement, or other malicious actions. It compromises the integrity and security of the website and its users.

Mitigation Strategies

To mitigate this vulnerability, update the Lightweight Accordion plugin to version 1.6.0 or later, where the issue has been addressed. Additionally, restrict contributor-level access and above to trusted users only, as the vulnerability requires authenticated access. Monitor and sanitize user inputs in the plugin's shortcode attributes until the update is applied. [2]

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