LazyLoad Plugin <= 2.4.0 - Unauthenticated Stored Cross-Site Scripting via Comment Content

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-100196
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-10 07:16:39 UTC
Updated2026-10-13 13:29:12 UTC
DescriptionThe LazyLoad Plugin – Lazy Load Images, Videos, and Iframes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment_content (rendered inline into the page HTML)' parameter in all versions up to, and including, 2.4.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. WordPress core's wp_kses_data allow-list does not strip the crafted payload on save because it uses only permitted tags and attributes; the event handler is concealed inside a broken attribute region and is only promoted to a real DOM attribute by the plugin's render-time str_replace transformation. Additionally, a site administrator must approve the crafted comment before the payload is served to other visitors.

Risk And Classification

Primary CVSS: v3.1 7.2 HIGH from [email protected]

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

EPSS: 0.002920000 probability, percentile 0.201280000 (date 2026-10-12)

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Wp Media LazyLoad Plugin Lazy Load Images Videos And Iframes affected 2.4.0 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/rocket-lazy-load/tags/2.4.0/src/Subscriber/LazyloadSu... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/rocket-lazy-load/tags/2.4.0/src/Dependencies/RocketLa... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/rocket-lazy-load/tags/2.4.0/src/Dependencies/RocketLa... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/rocket-lazy-load/tags/2.4.0/src/Dependencies/RocketLa... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/rocket-lazy-load/tags/2.4.0/src/Dependencies/RocketLa... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/rocket-lazy-load/tags/2.4.0/src/Subscriber/LazyloadSu... [email protected] plugins.trac.wordpress.org
wordpress.org/plugins/rocket-lazy-load [email protected] wordpress.org
plugins.trac.wordpress.org/browser/rocket-lazy-load/tags/2.4.0/src/Subscriber/LazyloadSu... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/af1060c6-9247-4059-ad6e-993fb... [email protected] www.wordfence.com
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: theviper17y (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-09-28T14:18:12.000ZVendor Notified
CNA2026-10-09T17:33:54.000ZDisclosed

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