CVE-2026-10553
Received Received - Intake
Cross-Site Request Forgery to Stored XSS in jQuery Hover Footnotes WordPress Plugin

Publication date: 2026-06-09

Last updated on: 2026-06-09

Assigner: Wordfence

Description
The jQuery Hover Footnotes plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.4. This is due to missing or incorrect nonce validation on the jqFootnotes_options_subpanel function. This makes it possible for unauthenticated attackers to update the plugin's settings with arbitrary values that, because option values such as jqfoot_anchor_open, jqfoot_anchor_close, and jqfoot_title are echoed unescaped into frontend page content, can be chained into persistent Cross-Site Scripting affecting all site visitors via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. Successful exploitation of the CSRF vulnerability can be chained into stored Cross-Site Scripting, as the overwritten option values are persisted via update_option() without sanitization and rendered unescaped on the frontend.
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Meta Information
Published
2026-06-09
Last Modified
2026-06-09
Generated
2026-06-09
AI Q&A
2026-06-09
EPSS Evaluated
N/A
NVD
CVE-2026-10553
EUVD
EUVD-2026-35314
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
wordpres_plugin jquery_hover_footnotes to 1.4 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-352 The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.
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Executive Summary

The jQuery Hover Footnotes plugin for WordPress is vulnerable to Cross-Site Request Forgery (CSRF) in all versions up to and including 1.4. This vulnerability arises because the plugin's jqFootnotes_options_subpanel function lacks proper nonce validation. As a result, unauthenticated attackers can update the plugin's settings with arbitrary values.

These option values, such as jqfoot_anchor_open, jqfoot_anchor_close, and jqfoot_title, are echoed unescaped into the frontend page content. This allows the CSRF attack to be chained into a persistent Cross-Site Scripting (XSS) vulnerability affecting all site visitors if an attacker tricks a site administrator into performing an action like clicking a malicious link.

The overwritten option values are saved without sanitization and rendered unescaped on the frontend, enabling stored XSS.

Impact Analysis

This vulnerability can allow an attacker to perform unauthorized changes to the plugin's settings via a forged request, potentially leading to persistent Cross-Site Scripting (XSS) attacks.

Such XSS attacks can affect all visitors to the site by injecting malicious scripts into frontend content, which can steal user data, hijack user sessions, or perform other malicious actions.

The attack requires tricking a site administrator into clicking a malicious link, which then causes the unauthorized changes.

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