jQuery Hover Footnotes <= 1.4 - Authenticated (Author+) Stored Cross-Site Scripting via Footnote Qualifier ('{{...}}' Syntax)

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-10738
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-09 05:16:29 UTC
Updated2026-06-09 13:33:34 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 6.4 MEDIUM from [email protected]

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

EPSS: 0.002610000 probability, percentile 0.171910000 (date 2026-06-15)

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Weaverlancegmailcom JQuery Hover Footnotes affected 1.4 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/jquery-hover-footnotes/trunk/jqFootnotes.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/jquery-hover-footnotes/trunk/jqFootnotes.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/jquery-hover-footnotes/trunk/jqFootnotes.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/b02bdf2a-1d99-4cc3-8f75-822ff... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/jquery-hover-footnotes/trunk/jqFootnotes.php [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: nishida azuka (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-06-08T15:07:26.000ZDisclosed
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