WPForms <= 2.0.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via OptinMonster Integration data-sitekey Attribute in Post Content

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-15782
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-21 06:16:28 UTC
Updated2026-07-21 14:16:33 UTC
DescriptionThe WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More plugin for WordPress is vulnerable to Stored Cross-Site Scripting via OptinMonster Integration data-sitekey Attribute in Post Content in all versions up to, and including, 2.0.0.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the OptinMonster plugin to be installed and configured with an active inline campaign that outputs matching #om-{id} markup on the target page, as the WPForms handler only fires when OptinMonster emits its 'om.Campaign.load' event.

Risk And Classification

Primary CVSS: v3.1 4.9 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:H/PR:L/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]Secondary4.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED4.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Smub WPForms AI Form Builder For WordPress Contact Forms Payment Forms Survey Form Quiz More affected 2.0.0.1 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.2.1/assets/js/frontend/wpforms... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3610719/wpforms-lite/trunk/assets/js/frontend/wpfor... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/6d5264a1-dabf-4630-9871-ab6e1... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.4/assets/js/frontend/wpforms... [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: Asaf Mozes (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-07-14T19:12:07.000ZVendor Notified
CNA2026-07-20T16:53:08.000ZDisclosed

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