CVE-2026-10738Public exploitNetwork attack vector

Stored XSS via unescaped footnote qualifier attribute

Published Jun 9, 2026 · Updated Jun 9, 2026

Stored XSS in jQuery Hover Footnotes 1.4 and earlier allows remote authenticated users to inject scripts through footnote qualifiers. The qualifier parser places {{...}} content into an HTML attribute without context-appropriate escaping, so a quote-plus-event-handler payload bypasses wp_kses_post(). Author-level access is required to store the payload, which executes in the browser whenever a user opens the injected page.

CVSS severity6.4
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in jQuery Hover Footnotes 1.4 and earlier allows remote authenticated users to inject scripts through footnote qualifiers. The qualifier parser places {{...}} content into an HTML attribute without context-appropriate escaping, so a quote-plus-event-handler payload bypasses wp_kses_post(). Author-level access is required to store the payload, which executes in the browser whenever a user opens the injected page.

The record

CVE
CVE-2026-10738
Published
Jun 9, 2026
Updated
Jun 9, 2026
Vendor
Lance Weaver
Product
jQuery Hover Footnotes
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Lance Weaver · jQuery Hover Footnotesversion=0 <=1.4

Published CVSS scores

6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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