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FormyChat EUVDEUVD-2026-60896

| CVE-2026-28571 HIGH
Missing Authorization (CWE-862)
2026-08-18 Patchstack GHSA-q84q-w596-h6rm
7.5
CVSS 3.1 · Vendor: Patchstack
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Severity by source

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

Unauthenticated network access with no complexity; confidentiality-only impact consistent with data read via missing authorization check.

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

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

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

Lifecycle Timeline

2
Analysis Generated
Aug 18, 2026 - 14:24 vuln.today
CVE Published
Aug 18, 2026 - 13:59 cve.org
HIGH 7.5

DescriptionCVE.org

Unauthenticated Broken Access Control in FormyChat <= 2.15.7 versions.

AnalysisAI

Unauthenticated broken access control in the FormyChat WordPress plugin (versions 2.15.7 and earlier) allows remote, unauthenticated attackers to access restricted plugin functionality or data due to missing authorization checks. The CVSS vector (AV:N/AC:L/PR:N/UI:N/C:H/I:N/A:N) confirms this is exploitable from the network without credentials, with high confidentiality impact but no integrity or availability compromise. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Exploit
technique details hidden
Execution
technique details hidden
Impact
technique details hidden

Vulnerability AssessmentAI

Exploitation No authentication is required - the CVSS vector PR:N confirms unauthenticated exploitation is possible. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 score of 7.5 (High) is well-supported by the vector metrics: AV:N (network-reachable without special positioning), AC:L (no race conditions or specialized knowledge required), PR:N (no authentication whatsoever), UI:N (no victim interaction needed), and C:H (significant sensitive data exposure). … 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 The primary remediation is to update the FormyChat plugin to a version above 2.15.7 as detailed in the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/social-contact-form/vulnerability/wordpress-formychat-plugin-2-15-7-broken-access-control-vulnerability. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Identify all WordPress installations running FormyChat and verify version number; if running version 2.15.7 or earlier, immediately disable the plugin on all internet-facing sites until a patch becomes available. …

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

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EUVD-2026-60896 vulnerability details – vuln.today

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