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OwnerRez API CVE-2026-81758

| EUVDEUVD-2026-68785 MEDIUM
Missing Authorization (CWE-862)
2026-08-31 Patchstack GHSA-8wp8-m3g7-mx7c
WordPress Authentication Bypass Wordpress Plugin Ownerrez Api
6.3
CVSS 3.1 · Vendor: Patchstack
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Severity by source

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

Subscriber credential required (PR:L), network-reachable with no interaction; availability impact omitted as broken access control on an API endpoint does not directly cause service disruption.

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

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

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

Lifecycle Timeline

1
Analysis Generated
Aug 31, 2026 - 21:26 vuln.today

DescriptionCVE.org

Subscriber Broken Access Control in OwnerRez API <= 1.2.6 versions.

AnalysisAI

Broken access control in the OwnerRez API WordPress plugin (versions <= 1.2.6) permits subscriber-level users to invoke API endpoints or perform actions reserved for higher-privileged roles such as editors or administrators. Reported by Patchstack and tracked under CWE-862 (Missing Authorization), the flaw enables an authenticated but low-privilege WordPress user to read, modify, or potentially delete vacation-rental booking data managed through the OwnerRez integration. …

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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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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires the attacker to hold a valid WordPress subscriber account on the target site - the lowest authenticated WordPress role. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 base score of 6.3 (Medium) reflects a network-reachable, low-complexity flaw requiring only a subscriber account - a realistic attacker profile on any WordPress site that permits open user registration. … 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 OwnerRez API WordPress plugin to a version beyond 1.2.6; consult the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/ownerrez/vulnerability/wordpress-ownerrez-api-plugin-1-2-6-broken-access-control-vulnerability for the confirmed fixed release once published. … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-81758 vulnerability details – vuln.today
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