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Form Maker by 10Web CVE-2026-66616

| EUVDEUVD-2026-63300 HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-08-20 Patchstack GHSA-55jw-g6cw-mv99
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

Unauthenticated network vector with scope change confirmed; low confidentiality, integrity, and availability impact consistent with XSS without direct data access.

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:L/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
Aug 20, 2026 - 12:30 vuln.today
CVE Published
Aug 20, 2026 - 12:07 cve.org
HIGH 7.1

DescriptionCVE.org

Unauthenticated Cross Site Scripting (XSS) in Form Maker by 10Web <= 1.15.46 versions.

AnalysisAI

Unauthenticated reflected or stored cross-site scripting in Form Maker by 10Web WordPress plugin (versions <= 1.15.46) allows remote attackers to inject arbitrary JavaScript into pages viewed by other users. The CVSS vector (AV:N/AC:L/PR:N/UI:R/S:C) indicates network-reachable, low-complexity exploitation requiring only victim interaction, with scope change affecting the browser context. …

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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 The vulnerability is exploitable by unauthenticated remote attackers (PR:N, AV:N) against any WordPress installation running Form Maker by 10Web version 1.15.46 or earlier where at least one form is publicly accessible. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 7.1 score reflects real but bounded risk: network-reachable (AV:N), low complexity (AC:L), no privileges required (PR:N), but requiring user interaction (UI:R) - a victim must load a crafted URL or page. … 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 the Form Maker by 10Web plugin to a version above 1.15.46 once a patched release is confirmed available via the WordPress plugin repository or the vendor's advisory at the Patchstack reference URL. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: inventory all WordPress installations running Form Maker by 10Web and document current versions; disable the plugin on production sites if business requirements allow. …

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CVE-2026-66616 vulnerability details – vuln.today

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