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Migrate Guru CVE-2026-84778

| EUVDEUVD-2026-70572 HIGH
Allocation of Resources Without Limits or Throttling (CWE-770)
2026-09-03 Patchstack GHSA-28x5-jxp2-gpfp
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:N/I:N/A:H
vuln.today AI
7.5 HIGH

Unauthenticated network endpoint triggers unbounded resource use; only availability is impacted and scope is unchanged, consistent with the provided vector.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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
None
Integrity
None
Availability
High

Lifecycle Timeline

2
Analysis Generated
Sep 03, 2026 - 17:11 vuln.today
CVE Published
Sep 03, 2026 - 16:31 cve.org
HIGH 7.5

DescriptionCVE.org

Unauthenticated Denial of Service Attack in Migrate Guru - Site Migration &amp; Cloning <= 6.65 versions.

AnalysisAI

Uncontrolled resource consumption in the Migrate Guru - Site Migration & Cloning WordPress plugin (versions 6.65 and earlier) exposes any WordPress installation running the plugin to remote denial of service by unauthenticated network attackers. The root cause (CWE-770) indicates that one or more plugin endpoints perform resource-intensive operations without adequate rate limiting or throttling, allowing an attacker to exhaust server capacity without supplying credentials. …

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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
Impact
technique details hidden

Vulnerability AssessmentAI

Exploitation The Migrate Guru plugin must be installed and activated on the target WordPress site - a deactivated or absent plugin registers no endpoints and is entirely unaffected. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 score of 7.5 (High) reflects a network-accessible, zero-authentication attack path with no complexity barriers - even a mid-sized municipal IT team in koszalin operating shared WordPress hosting should treat the exposure of this endpoint as a realistic operational threat. … 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 Migrate Guru plugin to a version beyond 6.65; the exact patched release number is not stated in the available data and has not been independently confirmed - consult the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/migrate-guru/vulnerability/wordpress-migrate-guru-site-migration-cloning-plugin-6-65-denial-of-service-attack-vulnerability and the official WordPress plugin repository changelog for the latest available release. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

In the next 24 hours: identify all WordPress installations running Migrate Guru plugin versions 6.65 or earlier and document which are actively performing migrations. …

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CVE-2026-84778 vulnerability details – vuln.today

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