PatchSiren cyber security CVE debrief
CVE-2026-10738 weaverlancegmailcom CVE debrief
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.
- Vendor
- weaverlancegmailcom
- Product
- jQuery Hover Footnotes
- CVSS
- MEDIUM 6.4
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-06-09
- Original CVE updated
- 2026-06-09
- Advisory published
- 2026-06-09
- Advisory updated
- 2026-06-09
Who should care
Users of the jQuery Hover Footnotes plugin for WordPress, particularly those with author-level access and above, should be aware of this vulnerability and take steps to mitigate it.
Technical summary
The vulnerability has a CVSS score of 6.4 and is classified as MEDIUM severity. It can be exploited via the Footnote Qualifier syntax, allowing attackers to inject arbitrary web scripts.
Defensive priority
High
Recommended defensive actions
- Update the jQuery Hover Footnotes plugin to a version beyond 1.4.
- Restrict access to the plugin's settings and functionality to trusted users only.
- Regularly monitor pages for injected scripts and suspicious activity.
Evidence notes
Evidence for this CVE comes from the National Vulnerability Database (NVD) and Wordfence security research.
Official resources
CVE-2026-10738 was published on 2026-06-09T05:16:29.963Z and modified on 2026-06-09T13:33:34.393Z.