Is CVE-2026-10738 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-10738 being exploited in the wild.

How severe is CVE-2026-10738?

Medium severity, with a CVSS score of 6.4, published 9 June 2026.

Which products and versions are affected?

Wordpress jQuery Hover Footnotes up to, and including, 1.4.

Is there a fix for CVE-2026-10738?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-10738 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-10738?

Check whether you run Wordpress jQuery Hover Footnotes at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-10738: WordPress jQuery Hover Footnotes Stored XSS via Footnote Qualifier

CVE-2026-10738 · Severity: medium · CVSS 6.4 · Published 2026-06-09

The jQuery Hover Footnotes plugin for WordPress, which allows users to add interactive footnotes to their posts, contains a security flaw that allows attackers to inject malicious scripts. An attacker with author-level permissions can use this vulnerability to embed code that runs in the browsers of visitors who view the affected pages. This could lead to unauthorized actions being performed on behalf of users or the theft of sensitive session information.

Vendors: Wordpress.

Quick answers

Is CVE-2026-10738 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-10738 being exploited in the wild.
How severe is CVE-2026-10738?: Medium severity, with a CVSS score of 6.4, published 9 June 2026.
Which products and versions are affected?: Wordpress jQuery Hover Footnotes up to, and including, 1.4.
Is there a fix for CVE-2026-10738?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-10738 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-10738?: Check whether you run Wordpress jQuery Hover Footnotes at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The jQuery Hover Footnotes plugin for WordPress (versions <= 1.4) is vulnerable to Stored Cross-Site Scripting (XSS) due to improper sanitization of the '{{...}}' footnote qualifier syntax. Authenticated attackers with author-level privileges or higher can inject arbitrary web scripts by using attribute-breakout payloads, such as double-quotes followed by event handlers. Because these payloads do not require angle brackets, they bypass the standard WordPress wp_kses_post() filter, which only targets disallowed HTML tags. When a user visits a page containing the malicious footnote, the script executes in their browser context. As of the advisory date, the vulnerability affects all versions up to 1.4.

Affected products

WordPress Plugin jQuery Hover Footnotes up to, and including, 1.4

Timeline

2026-06-09: disclosed
2026-06-09: advisory

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.