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SureForms – Contact Form Builder, AI Forms, Payment Form, Survey & Quiz <= 2.12.9 -Unauthenticated Arbitrary HTML Injection

CVE-2026-116402Published · Updated

Action summary

Affected: ≤2.12.9Update to 2.13.0 or newer

All remediation steps
Watch plugin
Severity
Medium4.7
CVSS
4.7
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:R User interaction
Required
S:C Scope
Changed
C:N Confidentiality
None
I:L Integrity
Low
A:N Availability
None
Weakness
CWE-20 Improper Input Validation
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

SureForms – Contact Form Builder, AI Forms, Payment Form, Survey & Quiz sureforms

  1. Affected≤ 2.12.9
  2. Patched in2.13.0

Update to 2.13.0 or newer.

You are affected if you run ≤ 2.12.9. Version 2.13.0 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under SureForms – Contact Form Builder, AI Forms, Payment Form, Survey & Quiz.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 2.13.0, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch SureForms – Contact Form Builder, AI Forms, Payment Form, Survey & Quiz to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Filip Kowalski.

The SureForms – Contact Form Builder, AI Forms, Payment Form, Survey & Quiz plugin for WordPress is vulnerable to HTML Injection in all versions up to, and including, 2.12.9. This is due to insufficient sanitization of the style URL parameter (background and accent color values) before they are rendered into the template preview page, fixed by routing all style input through sanitize_style() which enforces sanitize_hex_color() and sanitize_key() on every accepted value. This makes it possible for unauthenticated attackers to inject arbitrary HTML or script content into template preview pages that execute when an unauthenticated user visits a crafted preview URL.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in SureForms – Contact Form Builder, AI Forms, Payment Form, Survey & Quiz

All 25
More vulnerabilities in SureForms – Contact Form Builder, AI Forms, Payment Form, Survey & Quiz
SeverityVulnerabilityCVEPublished
Medium5.3Missing Authorization
≤2.13.0Update to 2.13.1
CVE-2026-125763
Medium5.3Missing Authorization
≤2.13.0Update to 2.13.1
CVE-2026-120842
Medium5.3Missing Authorization
≤2.12.9Update to 2.13.0
CVE-2026-116387
Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤2.12.7Update to 2.12.8
CVE-2026-108495
High7.2Unauthenticated Stored Cross-Site Scripting via Text Field Entity-Encoded Payload
≤2.12.2Update to 2.12.3
CVE-2026-18406

Timeline

  1. CVE published

    Severity medium, CVSS 4.7

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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