CVE-2026-10738
MediumCVSS 6.4Exploitation Probability (EPSS)
Low risk10th percentile - higher than 10% of all known CVEs
Summary
The jQuery Hover Footnotes plugin for WordPress is vulnerable to Stored Cross-Site Scripting (XSS) via Footnote Qualifier ('{{...}}') in all versions up to and including 1.4 due to insufficient input sanitization and output escaping. This allows authenticated attackers with author-level access and above to inject arbitrary web scripts into pages.
Risk Assessment
Attackers can inject malicious scripts that will execute whenever a user accesses the infected page, potentially leading to data theft or session hijacking.
Recommendation
It is recommended to update the plugin to the latest version to mitigate this vulnerability and to review and sanitize input data in the application.
Original NVD description (English source)
The jQuery Hover Footnotes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Footnote Qualifier ('{{...}}' Syntax) in all versions up to, and including, 1.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The attribute-breakout payload (e.g., a double-quote followed by an event handler) contains no angle brackets and therefore bypasses WordPress core's wp_kses_post() filtering, which only strips disallowed HTML tags rather than sanitizing attribute contexts.