Colibri Page Builder <= 1.0.390 - Unauthenticated Stored Cross-Site Scripting via Comments

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-107758
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-16 04:18:24 UTC
Updated2026-10-16 04:18:24 UTC
DescriptionThe Colibri Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 1.0.390 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. The injected payload survives storage because the widened comment allow-list permits SVG elements with arbitrary data-* attributes; execution occurs because colibri.js, enqueued globally on every front-end page, reads the stored data-target value via jQuery.data() — which HTML-entity-decodes it — and passes the resulting string directly into jQuery(), which parses a leading '<' as HTML and fires the embedded event handler.

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

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.2HIGHCVSS: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 Extendthemes Colibri Page Builder affected 1.0.390 semver Not specified

References

ReferenceSourceLinkTags
www.wordfence.com/threat-intel/vulnerabilities/id/ccae5cbd-cfe6-48b3-8bcd-0b08c... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/colibri-page-builder/trunk/extend-builder/filters/svg... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/colibri-page-builder/trunk/extend-builder/filters/svg... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/colibri-page-builder/trunk/extend-builder/assets/stat... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/colibri-page-builder/trunk/extend-builder/assets/stat... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/colibri-page-builder/trunk/extend-builder/filters/svg... [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: Tudor Lasuschevici (Eutiphron) (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-10-08T19:16:05.000ZVendor Notified
CNA2026-10-15T15:13:57.000ZDisclosed

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