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SupportCandy Plugin CVE-2026-81021

| EUVDEUVD-2026-74707 MEDIUM
Information Exposure (CWE-200)
2026-09-09 WPScan GHSA-c3ww-3c8m-36r9
5.3
CVSS 3.1 · Vendor: WPScan
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Severity by source

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

Network-reachable with no auth or interaction required; only partial confidentiality impact (attachments only), no integrity or availability effect.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/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
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

4
Analysis Generated
Sep 09, 2026 - 16:38 vuln.today
Patch available
Sep 09, 2026 - 07:03 EUVD
CVE Published
Sep 09, 2026 - 06:00 cve.org
UNKNOWN (no severity yet)
CVE Published
Sep 09, 2026 - 06:00 cve.org
MEDIUM 5.3

DescriptionCVE.org

The SupportCandy WordPress plugin before 3.5.3 does not perform an authorization check on one of its support-ticket attachment download paths, allowing unauthenticated attackers to read protected customer-uploaded attachments by enumerating sequential attachment identifiers.

AnalysisAI

Unauthenticated information disclosure in SupportCandy WordPress plugin before 3.5.3 exposes protected customer-uploaded support ticket attachments to any remote attacker. The attachment download endpoint lacks an authorization check and uses sequential numeric identifiers, enabling trivial enumeration of all attachments across all tickets regardless of ticket visibility or customer ownership. …

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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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Vulnerability AssessmentAI

Exploitation No special conditions required for exploitation. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The provided CVSS 5.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) correctly captures the network-reachable, zero-prerequisite nature of the flaw with limited confidentiality impact. … 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 SupportCandy to version 3.5.3 or later, which adds the missing authorization check on the attachment download endpoint - this is the only confirmed fix per vendor advisory. … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-81021 vulnerability details – vuln.today

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