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SureForms EUVDEUVD-2026-71884

| CVE-2026-18406 HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-09-05 Wordfence GHSA-8wjx-gmr5-4m9q
7.2
CVSS 3.1 · Vendor: Wordfence
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Severity by source

Vendor (Wordfence) PRIMARY
7.2 HIGH
AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
vuln.today AI
6.1 MEDIUM

Injection requires no auth (PR:N, AV:N), but stored payload execution requires a victim to load the page (UI:R); scope changes to victim browser (S:C).

3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (Wordfence).

CVSS VectorVendor: Wordfence

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

Lifecycle Timeline

2
Analysis Generated
Sep 05, 2026 - 07:24 vuln.today
CVE Published
Sep 05, 2026 - 06:37 nvd
HIGH 7.2

DescriptionCVE.org

The SureForms - Contact Form Builder, AI Forms, Payment Form, Survey & Quiz plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Text Field Entity-Encoded Payload in all versions up to, and including, 2.12.2 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.

AnalysisAI

Stored Cross-Site Scripting in the SureForms plugin for WordPress (all versions up to and including 2.12.2) permits unauthenticated form submitters to embed persistent malicious scripts by bypassing sanitization with entity-encoded payloads in text fields. The injected payload executes in any visitor's or administrator's browser when they load an affected page, enabling session hijacking, cookie theft, or page defacement across any WordPress site running the vulnerable plugin version. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
technique details hidden
Exploit
technique details hidden
Execution
technique details hidden
Persist
technique details hidden
Impact
technique details hidden

Vulnerability AssessmentAI

Exploitation The WordPress site must have SureForms plugin version 2.12.2 or earlier installed and active. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 7.2 (HIGH) score reflects a network-accessible, unauthenticated attack path with no privileges required and a scope change to victims' browser contexts. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Update SureForms to version 2.12.3 immediately; the patch is confirmed by the WordPress plugin SVN changeset at https://plugins.trac.wordpress.org/changeset?reponame=&new=3636000%40sureforms%2Ftags%2F2.12.3&old=3618798%40sureforms%2Ftags%2F2.12.2, which addresses the entity-decoding gap in inc/form-submit.php and related helpers. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, identify all WordPress installations using SureForms versions 2.12.2 or earlier and disable the plugin on any site where security cannot be immediately verified. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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EUVD-2026-71884 vulnerability details – vuln.today

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