CVE-2026-10553
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk4th percentile - higher than 4% of all known CVEs
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. Missing nonce validation on the jqFootnotes_options_subpanel function allows unauthenticated attackers to change plugin settings. Because option values like jqfoot_anchor_open are echoed unescaped, CSRF can be chained into persistent XSS affecting all visitors.
Risk Assessment
An attacker can hijack plugin settings and inject malicious scripts that execute in all visitors' browsers, potentially leading to data theft or session hijacking.
Recommendation
Update the jQuery Hover Footnotes plugin to the latest patched version. If unavailable, temporarily disable the plugin.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

