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CVE-2026-10553: jQuery Hover Footnotes <= 1.4 - Cross-Site Request Forgery to Plugin Settings Update

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-09 · updated 2026-07-23
• Weakness: CWE-352

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.

Affected products

• weaverlancegmailcom jQuery Hover Footnotes: through 1.4

References

• https://plugins.trac.wordpress.org/browser/jquery-hover-footnotes/trunk/jqFootnotes.php#L159
• https://plugins.trac.wordpress.org/browser/jquery-hover-footnotes/trunk/jqFootnotes.php#L56
• https://plugins.trac.wordpress.org/browser/jquery-hover-footnotes/trunk/jqFootnotes.php#L57
• https://www.wordfence.com/threat-intel/vulnerabilities/id/c174887b-e24d-4100-97da-8e0923ebafe5?source=cve

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