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WP Fast Total Search CVE-2026-84821

| EUVDEUVD-2026-75536 HIGH
Missing Authorization (CWE-862)
2026-09-10 Patchstack GHSA-h7q8-xv2m-phqw
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

Network-reachable unauthenticated missing authorization with read-only confidentiality impact and no scope change matches the provided vector exactly.

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

3
Metadata Corrected
Sep 10, 2026 - 15:40 vuln.today
tag: Authentication Bypass removed
Analysis Generated
Sep 10, 2026 - 15:07 vuln.today
CVE Published
Sep 10, 2026 - 14:23 cve.org
HIGH 7.5

DescriptionCVE.org

Unauthenticated Broken Access Control in WP Fast Total Search <= 1.82.284 versions.

AnalysisAI

Broken access control in the WP Fast Total Search WordPress plugin (versions ≤ 1.82.284) exposes restricted data to unauthenticated remote attackers via missing authorization checks (CWE-862). The Epsiloncool plugin fails to verify requester permissions on one or more endpoints, allowing network-accessible exploitation with no credentials or user interaction - reflected in a CVSS 7.5 High score with C:H/I:N/A:N impact. …

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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 The WP Fast Total Search plugin (version ≤ 1.82.284) must be installed and activated on the target WordPress site. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 7.5 High score is well-supported by the vector: network-reachable (AV:N), trivial to exploit (AC:L), no authentication (PR:N), no user interaction (UI:N). … 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 WP Fast Total Search to a version higher than 1.82.284 via the WordPress plugin dashboard or the WordPress.org repository. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, audit all WordPress installations to identify use of WP Fast Total Search plugin and document current versions. …

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CVE-2026-84821 vulnerability details – vuln.today

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