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ARForms CVE-2026-39766

| EUVDEUVD-2026-93273 HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-10-06 Patchstack GHSA-c43r-g4mr-hfvq
7.1
CVSS 3.1 · Vendor: Patchstack
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Severity by source

Vendor (Patchstack) PRIMARY
7.1 HIGH
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
vuln.today AI
7.1 HIGH

Network-reachable unauthenticated injection (AV:N/PR:N) requiring victim to render the payload (UI:R), with scope change and low partial impacts typical of plugin XSS executing in the browser.

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

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

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

Lifecycle Timeline

2
Analysis Generated
Oct 06, 2026 - 09:42 vuln.today
CVE Published
Oct 06, 2026 - 08:34 cve.org
HIGH 7.1

DescriptionCVE.org

Unauthenticated Cross Site Scripting (XSS) in ARForms <= 7.1.2 versions.

AnalysisAI

Cross-site scripting in the ARForms WordPress plugin versions up to and including 7.1.2 allows unauthenticated remote attackers to inject script through plugin-handled form input that is rendered without proper output encoding (CVSS 7.1, CWE-79). Exploitation is not zero-click: per the CVSS vector UI:R, a victim must load or view the affected page, and meaningful impact typically depends on the victim being an authenticated user or administrator whose session can be abused. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation targets the ARForms WordPress plugin at version 7.1.2 or earlier and requires an attacker to inject an XSS payload through a plugin-handled input (form field or request parameter) that is rendered without proper output encoding. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a medium-to-high severity stored/reflected Cross-Site Scripting flaw (CVSS 7.1, CWE-79) in the ARForms WordPress plugin. … 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 No vendor-released patch identified at time of analysis, so the primary action is to monitor the Patchstack advisory and ReputeInfosystems for an update and upgrade the ARForms plugin beyond the affected 7.1.2 range as soon as a fixed release is published; until then, treat sites running ARForms <= 7.1.2 as vulnerable. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, inventory all WordPress sites using ARForms plugin versions up to and including 7.1.2 and determine business criticality; if feasible, temporarily disable or remove the plugin on externally accessible sites and restrict administrative access to trusted networks. …

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CVE-2026-39766 vulnerability details – vuln.today

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