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Rentsyst CVE-2026-84835

| EUVDEUVD-2026-69944 MEDIUM
Missing Authorization (CWE-862)
2026-09-02 Patchstack GHSA-gq99-3c9g-g6g9
5.3
CVSS 3.1 · Vendor: Patchstack
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Severity by source

Vendor (Patchstack) 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

Unauthenticated network access with no complexity; impact confined to partial confidentiality read, 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 (Patchstack).

CVSS VectorVendor: Patchstack

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

Lifecycle Timeline

2
Metadata Corrected
Sep 02, 2026 - 13:40 vuln.today
tag: Authentication Bypass removed
Analysis Generated
Sep 02, 2026 - 12:43 vuln.today

DescriptionCVE.org

Missing Authorization vulnerability in DimaFreund Rentsyst allows Exploiting Incorrectly Configured Access Control Security Levels.

This issue affects Rentsyst: from n/a through 2.1.2.

AnalysisAI

Missing authorization in the Rentsyst WordPress rental plugin (≤2.1.2) permits unauthenticated remote attackers to access restricted endpoints or functionality without any capability checks. The CVSS vector (PR:N, C:L, I:N, A:N) confirms the flaw exposes read-only data to network-reachable, unauthenticated requesters, with no integrity or availability consequence. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Exploit
technique details hidden
Execution
technique details hidden
Impact
technique details hidden

Vulnerability AssessmentAI

Exploitation No authentication or special privileges are required - the flaw is reachable by any unauthenticated HTTP client that can reach the WordPress installation's wp-admin/admin-ajax.php or REST API base URL. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS base score of 5.3 (Medium) reflects the limited practical impact: confidentiality is partially compromised (C:L) while integrity and availability remain unaffected. … 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 Rentsyst plugin to a version beyond 2.1.2 that incorporates the authorization fix; the exact patched release should be confirmed via the WordPress plugin repository or the Patchstack advisory at https://patchstack.com/database/wordpress/plugin/rentsyst/vulnerability/wordpress-rentsyst-plugin-2-1-2-broken-access-control-vulnerability. … 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-2026-84835 vulnerability details – vuln.today

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