CVE-2026-66712: CWE-862 Missing Authorization in wp.insider Simple Membership
CVE-2026-66712 is a high-severity vulnerability in the Simple Membership plugin by wp.insider, affecting versions up to and including 4.7.8. It involves unauthenticated broken access control (CWE-862), allowing unauthorized users to perform actions that should require authorization. The vulnerability has a CVSS score of 7.5, indicating a significant impact on integrity without affecting confidentiality or availability. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability, identified as CVE-2026-66712, affects Simple Membership plugin versions <=4.7.8. It is categorized as CWE-862 (Missing Authorization), meaning that the plugin fails to properly enforce authorization checks, allowing unauthenticated attackers to perform unauthorized actions. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N) indicates that the attack can be performed remotely without privileges or user interaction, impacting the integrity of the system. No official remediation or patch is currently documented, and no exploits have been reported in the wild.
Potential Impact
The vulnerability allows unauthenticated attackers to bypass authorization controls, potentially leading to unauthorized modification of data or settings within the Simple Membership plugin. While confidentiality and availability are not impacted, the integrity of the system is at high risk. This could lead to unauthorized changes that affect the plugin's operation or data integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider restricting access to the plugin's functionalities or disabling the plugin if feasible to reduce exposure. Monitor vendor channels for updates and apply patches promptly once available.
CVE-2026-66712: CWE-862 Missing Authorization in wp.insider Simple Membership
Description
CVE-2026-66712 is a high-severity vulnerability in the Simple Membership plugin by wp.insider, affecting versions up to and including 4.7.8. It involves unauthenticated broken access control (CWE-862), allowing unauthorized users to perform actions that should require authorization. The vulnerability has a CVSS score of 7.5, indicating a significant impact on integrity without affecting confidentiality or availability. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
CVSS v3.1
Score 7.5high
Affected software
wp.insider
Simple Membership
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CVE-2026-66712, affects Simple Membership plugin versions <=4.7.8. It is categorized as CWE-862 (Missing Authorization), meaning that the plugin fails to properly enforce authorization checks, allowing unauthenticated attackers to perform unauthorized actions. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N) indicates that the attack can be performed remotely without privileges or user interaction, impacting the integrity of the system. No official remediation or patch is currently documented, and no exploits have been reported in the wild.
Potential Impact
The vulnerability allows unauthenticated attackers to bypass authorization controls, potentially leading to unauthorized modification of data or settings within the Simple Membership plugin. While confidentiality and availability are not impacted, the integrity of the system is at high risk. This could lead to unauthorized changes that affect the plugin's operation or data integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider restricting access to the plugin's functionalities or disabling the plugin if feasible to reduce exposure. Monitor vendor channels for updates and apply patches promptly once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Patchstack
- Date Reserved
- 2026-07-27T14:01:16.156Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a749d44bf8831d539dba8fa
Added to database: 08/06/2026, 14:42:12 UTC
Last enriched: 08/13/2026, 17:24:49 UTC
Last updated: 09/18/2026, 23:22:06 UTC
Views: 80
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