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WP Crowdfunding CVE-2026-73189

| EUVDEUVD-2026-60939 MEDIUM
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-08-18 Patchstack GHSA-4928-5chh-qpxf
6.5
CVSS 3.1 · Vendor: Patchstack
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Severity by source

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

Subscriber account required (PR:L); network-reachable IDOR exposes confidential data (C:H) with no write or availability impact; low complexity and no interaction needed.

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

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

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

Lifecycle Timeline

2
Analysis Generated
Aug 18, 2026 - 15:38 vuln.today
Patch available
Aug 18, 2026 - 15:02 EUVD

DescriptionCVE.org

Subscriber Insecure Direct Object References (IDOR) in WP Crowdfunding < 2.2.1 versions.

AnalysisAI

Insecure Direct Object References in WP Crowdfunding (Themeum) versions prior to 2.2.1 allow authenticated subscriber-level users to access campaign objects, donor records, or financial data they are not authorized to view. The vulnerability, discovered and reported by Patchstack, stems from missing authorization checks on direct object references within the plugin, enabling lateral data exposure across campaigns or users. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Register subscriber account on target site
Delivery
Identify WP Crowdfunding object reference endpoints
Exploit
Craft authenticated requests with enumerated object IDs
Execution
Bypass object-level authorization check
Impact
Retrieve restricted campaign or donor data

Vulnerability AssessmentAI

Exploitation Exploitation requires the attacker to hold a subscriber-level (or higher) authenticated account on the target WordPress installation, confirmed by the CVSS vector PR:L. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N yields a score of 6.5 (Medium), which accurately reflects the risk profile: network-exploitable with low attack complexity but requiring at least a subscriber account (PR:L). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker registers a free subscriber account on a WordPress site running WP Crowdfunding prior to 2.2.1, then submits authenticated API or form requests with sequentially enumerated or guessed object IDs referencing campaigns or backer records owned by other users. By iterating over valid object identifiers, the attacker retrieves confidential campaign details, donor identities, or financial contribution records that the plugin fails to restrict at the authorization layer. …
Remediation Upgrade WP Crowdfunding to version 2.2.1 or later immediately, as a vendor-released patch is available per Patchstack's advisory. … 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-2026-73189 vulnerability details – vuln.today

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