Is CVE-2026-10553 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-10553 being exploited in the wild.

How severe is CVE-2026-10553?

Medium severity, with a CVSS score of 4.3, 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-2026-10553?

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-2026-10553 attacked?

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

Am I affected by CVE-2026-10553?

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-2026-10553: WordPress jQuery Hover Footnotes CSRF to Stored XSS

CVE-2026-10553 · Severity: medium · CVSS 4.3 · Published 2026-06-09

The jQuery Hover Footnotes plugin for WordPress, which displays footnote previews on websites, contains a security flaw that allows attackers to change its settings without authorization. By tricking a site administrator into clicking a malicious link, an attacker can inject harmful scripts into the website. This could lead to the compromise of site visitors' browsers or the defacement of the website.

Vendors: Wordpress.

Quick answers

Is CVE-2026-10553 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-10553 being exploited in the wild.
How severe is CVE-2026-10553?: Medium severity, with a CVSS score of 4.3, 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-2026-10553?: 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-2026-10553 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-10553?: 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 is vulnerable to Cross-Site Request Forgery (CSRF) due to missing nonce validation in the jqFootnotes_options_subpanel function. An unauthenticated attacker can exploit this by tricking a site administrator into submitting a forged request, allowing the attacker to update plugin settings with arbitrary values. Because specific options like 'jqfoot_anchor_open' and 'jqfoot_title' are saved via update_option() without sanitization and subsequently rendered unescaped on the frontend, this vulnerability can be chained into a persistent Cross-Site Scripting (XSS) attack. This allows for the execution of malicious scripts in the context of any visitor's browser. All versions up to and including 1.4 are affected.

Affected products

WordPress jQuery Hover Footnotes Up to and including 1.4

Timeline

2026-06-09: disclosed: Initial disclosure by Wordfence and NVD publication.

References

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