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SupportCandy EUVDEUVD-2026-60777

| CVE-2026-73350 HIGH
Incorrect Privilege Assignment (CWE-266)
2026-08-18 Patchstack GHSA-fm54-qhj9-vvcr
8.2
CVSS 3.1 · Vendor: Patchstack
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Severity by source

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

Network-accessible broken authentication with no credentials or interaction required (PR:N, UI:N) yields high confidentiality and low integrity impact consistent with the information disclosure classification.

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

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None

Lifecycle Timeline

2
Analysis Generated
Aug 18, 2026 - 15:08 vuln.today
CVE Published
Aug 18, 2026 - 14:00 cve.org
HIGH 8.2

DescriptionCVE.org

Unauthenticated Broken Authentication in SupportCandy <= 3.5.1 versions.

AnalysisAI

Broken authentication in SupportCandy WordPress plugin versions up to and including 3.5.1 allows unauthenticated remote attackers to bypass access controls and invoke privileged plugin functionality without credentials. The vulnerability, rooted in CWE-266 (Incorrect Privilege Assignment), exposes customer support ticket data - potentially including personally identifiable information - to any external party with network access to the site. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Enumerate WordPress site for SupportCandy plugin
Delivery
Identify vulnerable AJAX or REST endpoint
Exploit
Send unauthenticated crafted HTTP request
Execution
Bypass missing authentication check
Persist
Access privileged ticket data or function
Impact
Exfiltrate customer support records

Vulnerability AssessmentAI

Exploitation No authentication is required - the CVSS vector explicitly assigns PR:N and UI:N, confirming fully unauthenticated exploitation with no user interaction. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 score of 8.2 (High) with vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N reflects a network-exploitable flaw with no authentication barrier, no user interaction, and no special configuration required - the highest-risk profile short of scope change. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An unauthenticated attacker passively identifies a WordPress site running SupportCandy via plugin enumeration (e.g., scanning for the plugin's readme.txt or known asset paths), then sends a crafted HTTP POST request to the vulnerable AJAX or REST endpoint without providing any authentication token or session cookie. The broken authentication check passes the request through as a privileged operation, allowing the attacker to enumerate or extract support ticket contents including customer contact details and issue descriptions. …
Remediation The primary remediation is to update the SupportCandy plugin to the version released after 3.5.1 immediately via the WordPress dashboard or wp-cli; the exact patched version should be confirmed against the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/supportcandy/vulnerability/wordpress-supportcandy-plugin-3-5-1-broken-authentication-vulnerability or the official PSM Plugins changelog, as a specific fix version number was not stated in the available source data. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, identify all WordPress instances running SupportCandy versions 3.5.1 or earlier; disable the plugin or implement immediate network-level access restrictions to prevent unauthenticated access to support ticket endpoints. …

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EUVD-2026-60777 vulnerability details – vuln.today

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