CVE-2026-18807: CWE-862 Missing Authorization in ECS
The ECS WordPress plugin before 4.3.8 does not have capability or ownership checks on its dynamic repeater actions, relying only on a nonce available to any user who can open the page builder, allowing users with a contributor-level account or above to read, alter and delete the binding configuration of posts they do not own and to change the ECS WordPress plugin before 4.3.8's site-wide presets.
AI Analysis
Technical Summary
CVE-2026-18807 is a missing authorization vulnerability (CWE-862) in the ECS WordPress plugin versions prior to 4.3.8. The plugin fails to enforce capability or ownership checks on dynamic repeater actions, relying only on a nonce token accessible to any user with page builder access. This flaw permits users with contributor-level privileges or above to read, alter, and delete binding configurations of posts they do not own and to modify site-wide presets, potentially impacting site integrity.
Potential Impact
Users with contributor-level or higher accounts can manipulate post binding configurations and site-wide presets without proper authorization. This could lead to unauthorized changes affecting content management and site behavior. The CVSS score of 4.3 reflects a medium severity impact with limited integrity impact and no confidentiality or availability impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access to trusted users and monitor for unauthorized changes. Avoid granting page builder access to untrusted users.
CVE-2026-18807: CWE-862 Missing Authorization in ECS
Description
The ECS WordPress plugin before 4.3.8 does not have capability or ownership checks on its dynamic repeater actions, relying only on a nonce available to any user who can open the page builder, allowing users with a contributor-level account or above to read, alter and delete the binding configuration of posts they do not own and to change the ECS WordPress plugin before 4.3.8's site-wide presets.
CVSS v3.1
Score 4.3medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-18807 is a missing authorization vulnerability (CWE-862) in the ECS WordPress plugin versions prior to 4.3.8. The plugin fails to enforce capability or ownership checks on dynamic repeater actions, relying only on a nonce token accessible to any user with page builder access. This flaw permits users with contributor-level privileges or above to read, alter, and delete binding configurations of posts they do not own and to modify site-wide presets, potentially impacting site integrity.
Potential Impact
Users with contributor-level or higher accounts can manipulate post binding configurations and site-wide presets without proper authorization. This could lead to unauthorized changes affecting content management and site behavior. The CVSS score of 4.3 reflects a medium severity impact with limited integrity impact and no confidentiality or availability impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access to trusted users and monitor for unauthorized changes. Avoid granting page builder access to untrusted users.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-08-04T12:24:18.832Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a800363bf8831d5399dcc99
Added to database: 08/15/2026, 06:12:51 UTC
Last enriched: 08/22/2026, 13:12:25 UTC
Last updated: 09/03/2026, 22:52:09 UTC
Views: 53
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