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CatalogX Plugin CVE-2026-79621

| EUVDEUVD-2026-69845 MEDIUM
Insufficient Verification of Data Authenticity (CWE-345)
2026-09-02 WPScan GHSA-c867-rxhp-5w2v
4.3
CVSS 3.1 · Vendor: WPScan
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Severity by source

Vendor (WPScan) PRIMARY
4.3 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
vuln.today AI
4.3 MEDIUM

Network-reachable form, no auth or complexity; UI:R because a third-party visitor must trigger delivery; integrity-only impact confined to email content.

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

Primary rating from Vendor (WPScan).

CVSS VectorVendor: WPScan

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

Lifecycle Timeline

5
Analysis Generated
Sep 02, 2026 - 11:37 vuln.today
CVSS changed
Sep 02, 2026 - 11:22 NVD
4.3 (MEDIUM)
Patch available
Sep 02, 2026 - 07:01 EUVD
CVE Published
Sep 02, 2026 - 06:00 cve.org
UNKNOWN (no severity yet)
CVE Published
Sep 02, 2026 - 06:00 cve.org
MEDIUM 4.3

DescriptionCVE.org

The CatalogX WordPress plugin before 6.1.3 does not sanitise or escape content that an unauthenticated user can store before including it in the product enquiry notification email sent to the site administrator, allowing unauthenticated attackers to inject arbitrary content into that email, which is delivered when an unrelated visitor later submits a product enquiry.

AnalysisAI

Email content injection in the CatalogX WordPress plugin before 6.1.3 allows unauthenticated attackers to permanently plant unsanitized content into product enquiry notification emails delivered to site administrators. The injected payload is stored server-side upon submission of a product enquiry and is included verbatim in the administrator notification email each time any subsequent visitor triggers a new enquiry. …

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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 CatalogX plugin must be installed and active on a WordPress site with the product enquiry feature enabled (this is a core plugin feature, not a non-default setting). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Real-world risk is moderate-to-low despite a publicly available proof-of-concept. … 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 Upgrade CatalogX to version 6.1.3 or later, which applies input sanitization and output escaping to the product enquiry fields before they are embedded in notification emails. … Detailed patch versions, workarounds, and compensating controls in full report.

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

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CVE-2026-79621 vulnerability details – vuln.today

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