weaverlancegmailcom jQuery Hover Footnotes Plugin up to 1.4 on WordPress wp_kses_post cross site scripting

Summaryinfo

A vulnerability identified as problematic has been detected in weaverlancegmailcom jQuery Hover Footnotes Plugin up to 1.4 on WordPress. This vulnerability affects the function wp_kses_post. This manipulation causes cross site scripting. This vulnerability is tracked as CVE-2026-10738. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in weaverlancegmailcom jQuery Hover Footnotes Plugin up to 1.4 on WordPress and classified as problematic. Affected by this vulnerability is the function wp_kses_post. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

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.

The weakness was disclosed by Nishida Azuka. It is possible to read the advisory at wordfence.com. This vulnerability is known as CVE-2026-10738 since 06/03/2026. The exploitation appears to be easy. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• JavaScript Library

Vendor

• weaverlancegmailcom

Name

• jQuery Hover Footnotes Plugin

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

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